A BBC1 series that began 28 September 2013 as a replacement for Merlin, created by Howard Overman and sharing some of the same production team. However, the Jason seen here is not he of the Argonauts fame, but a young man from the 21st century who is deep-sea diving, trying to find out about his missing father, when he abruptly vanishes and re-emerges in a pre-sinking Atlantis. Quickly making friends with Pythagoras and Hercules, they decide to become soldiers for hire to survive in the world Jason now finds himself in.
This series contains examples of:
Accidental Hero: Jason kills the Minotaur by holding onto his sword and letting it impale itself.
Accidental Murder: Pythagoras accidentally killed his father by pushing him back resulting in him cracking his head when he attacked his mother in a drunken rage, which his younger brother Arcas finds out in "The Furies" having previously believed him to be murdered.
Acrofatic: When Hercules flees from the Cult of Dionysus in the forest we see that for a man of his bulk he can run pretty damn fast!
Not to mention, he can leap improbably high when there's a bull charging at him.
Admiring the Abomination: The "Brazen Bull", which slow roasts people to death whilst converting their dying screams into the sound of a bellowing bull, is admired as a great technical piece of engineering by Pythagoras before he realises just exactly who they were planning to execute in it.
Adorkable: Pythagoras. He's skinny, and awkward with curly hair and his nose is far too long. And he is utterly adorable when he puts away his triangles and decides he is going to go and try to rescue Jason.
All Monks Know Kung-Fu: Well, all priestesses do, anyway. The Cult of Dionysus have some pretty sweet combat moves.
Alternate History Wank: Where to begin? Pythagorus, Hercules and Jason of the Argonauts all end up in Atlantis together. The labyrinth is just down the road, as are the Hours and Oedipus, for a start. Basically taking all of actual Greek History and any part of Classical Mythology you like and stuffing it all into Atlantis.
Annoying Arrows: Jason gets shot in the shoulder, casually pulls it out, and is still able to pull himself through a window by his arms. Downplayed in that he passes out from blood loss later.
Jason:You should fear me as they [Satyrs] do! I am Jason, slayer of the minotaur. ... I will slay you as I did the Earth Bull. I will tear down your temple and I will scatter your followers to the four winds!
Bad Ass Bookworm: Pythagoras. He is the one to rescue Jason from falling, and is the one who goes and grabs a sword to try to rescue him.
City Guards: Jason's first real encounter with the citizens of Atlantis is with them and they shoot him in the arm with an arrow. To be fair to them, Jason had just stolen some clothes and accidentally trashed a street market when he knocks over the Disaster Dominoes. That was still no excuse for knocking over Pythagoras's table and chairs just to show who was boss though.
The Chosen One: Jason is this, according to the Oracle. Just what he is chosen for she is rather vague on though.
Classical Mythology: Just as Merlin took a pick and mix approach to Arthurian mythology, Atlantis is taking the same approach to Classical Mythology and history.
Creepy Crows: Crows are apparently the messengers of the underworld, and in "Pandora's Box" their crowing is the signal for Pythagoras to resuscitate Jason and Hercules (who had gone to the Underworld to retrieve the titular artifact)
Crossing the Desert: The gang are hired to provide bodyguard duties on a trip to Helios, a city across the desert, plenty of howling wind, desert bandits, and sand everywhere were all in evidence. Also present were vengeance seeking dust devils.
Cruel and Unusual Death: What Pasiphae had in mind for Ariadne in the season one finale, shoved inside a metal bull, then the metal heated to slowly roast her alive.
Disappeared Dad: Jason's dad vanished in a freak underwater surveying accident. Trying to discover what happened is what kicked off the plot.
Doing Research: Pythagoras' duty in most episodes. His research montage is practically a stock trope in the show.
Do Not Touch the Funnel Cloud: The Furies appear as dust devils in the desert, but as long as you don't get caught in the funnel you'll survive. Hercules even manages to survive getting sucked in, albeit barely.
Dramatic Thunder: At the end of "Pandora's Box" when Jason challenges the Gods to "Do your worst", the thunder is there to basically say "challenge accepted".
Drinking On Duty: How Hercules manages to let the warehouse full of Frankincense get stolen while he was performing guard duty.
Drowning My Sorrows: After being unable to cure Medusa, Hercules basically retreats inside a flagon of ale. Until Jason gets turned into a Werewolf that is, then He's Back.
Easily Forgiven: only an episode after using a Love Potion on her which almost killed her, Medusa forgives Hercules after seeing his better qualities tending to an injured Jason
Exact Eaves Dropping: How Hercules finds out that Pythagoras actually does have a cure for Medusa, when Pythagoras explains to Atalanta exactly how fatal the cure would be to Hercules himself.
Fat and Skinny: The co-stars Pythagoras and Hercules. Pythagoras is the skinny brainy one and Hercules is the fat boisterous one.
Flirty Step Siblings: Jason and Ariadne, since Pasiphae, who is married to Ariadne's father Minos, is Jason's mother, though they don't know it yet.
Foregone Conclusion: Due to the Oracle claiming that Atlantis exists as half-remembered myths in "our" world, it's implied that the final fate of the city will be to end up under the waves.
In Episode 2, Medusa ends up being cursed after saving Jason. Though the effects have yet to become apparent, the Oracle admits to Jason that her fate is inescapable. This does indeed come to pass in Episode 9.
In Episode 4, they rescue a baby foretold to kill his father and marry his mother. He's later dubbed Oedipus.
Genre Savvy / Recognition Failure: Jason seems to swing between these two, suggesting that he has a working knowledge of the major figures present within Greek Mythology, but is rather fuzzy on the exact details of their myths.
Pythagoras: You shall stay with us. Jason: But what about Hercules? Pythagoras: He's usually so drunk when he returns from the tavern, he won't even notice you're there. cut to: Hercules: I don't wish to be rude, but what in the name of the gods is he still doing here?
Gorgeous Gorgon: After being transformed, Medusa gains snake hair and the ability to turn people into stone, but her face and body remain pretty much the same.
Have You Told Anyone Else?: In the third episode, this is Palos's response when Cyrus mentions he has seen Elpis stealing a lock of Jason's hair. Needless to say, the conversation doesn't end well for Cyrus.
Heroic Sacrifice: Ramos, the King's bodyguard, helps Jason and the guys rescue Ariadne in the finale. He stays behind to cover their escape, managing to kill several guards and still stand after being wounded, but is ultimately killed by Heptarian.
I Need to Go Iron My Dog: After the Pankration when Ariadne visits Jason, Hercules says that he and Pythagoras need to go fetch some bees in order to leave them alone. As they're walking off, Pythagoras immediately asks him why bees, and he admits it was the only thing he could think of
In the Past, Everyone Will Be Famous: In the pilot episode, Jason randomly falls through a roof into a house. Whose house is it? Why, Hercules and Pythagoras, who else would it be?
It Has Been an Honor: When they believe facing certain death Hercules tells Pythagoras he was a true friend. Pythagoras tells Hercules that he was an awful friend, but that he'd rather die beside him than with anyone else. Then Pythagoras hugs him tightly.
Jerk with a Heart of Gold: Hercules. When push comes to shove, he will step up and save lives even if he's risking his own. However he is also a womanising, selfish, drunk who is just as happy to drop his friends in petty trouble to save his own skin too.
Killed Off for Real: Ramos is killed by Heptarian in the finale, sacrificing himself to cover Ariadne's escape. Heptarian is later killed by Jason in a showdown.
Let Them Die Happy: Demetria's dying father asks if his daughter is happy and is told that she has gone to another city to marry her true love. Sadly it isn't true, she drank poison and killed herself due to being part of cult.
Love Potion: Hercules is so insecure in his relationship with Medusa that he resorts to one of these. It turns out to be more a poison potion though thanks to some liberal mis-interpretation of his wish.
Luke, I Am Your Father: "Touched by the Gods Part 2" introduces Jason's father, who knows Pasiphae. He reveals to her that Jason is her son, though Jason himself is unaware of this as of the series' end.
In the episode "The Price of Hope" Pythagoras mentions the time Hercules set fire to his bed, and the time he dangled him head first off the balcony.
In "Hunger Pangs" When Jason says he woke up naked in a goat pen, all Hercules can say is "it happens". Pythagoras is then surprised that it's never happened to Jason before, at which even Hercules looks at him oddly.
in the penultimate episode, Hercules begins to tell a funny story as to how he stole the table the trio have in their common room, but all he says is that it used to be owned by a man who loved sheep more than any other person Hercules had ever met before he decides it isn't the right time.
Plucky Girl: Medusa is an older version. When we meet her, she's been keeping up a facade of being brainwashed for weeks, and manages to save Hercules' life through some quick thinking. As you'd expect, this goes downhill when she becomes a gorgon.
The Queen's Latin: Everyone in the ancient world has a distinct UK accent. Particularly odd when you consider that Jason is from modern times and presumably did not go around conversing in ancient Greek before being lost in mythology world. His behavior is considered odd, but never his accent.
Shirtless Scene: Jason and another slave in "A Boy of No Consequence" always face the bulls without a shirt on.
The Smart Guy: Pythagoras. The jury is out as to whether he is the Pythagoras, but he is a mathematician and a scholar.
Smite Me, O Mighty Smiter: The end of "Pandora's Box" has Jason cursing out the Oracle and the Gods, telling them to "Do your worst". Cue ominous thunder.
Spiritual Successor: Howard Overman was a frequent guest writer for Merlin and co-created the series with executive producers of that show Johnny Capps and Julian Murphy; the show also shares its filming base in Wales and some other creative talent such as directors and composer Rob Lane.
Tap on the Head: After Jason fails to convince Demetria to come with them and break her brain washing, Hercules whacks her on the head with a Frying Pan of Doom and carries her off.
Tempting Fate: In 'Pandora's Box', just before Medusa flees from Kyros and his goons, Hercules assures her that they will never be parted again. Then Medusa finds Pandora's Box back at the house...
Time Skip: Between the end of "Pandora's Box" and "The Price of Hope" several months seem to have passed. Medusa has managed to disappear completely, and Pythagoras has done a lot of serious (although sadly futile) research.
To Hell and Back: In "Pandora's Box" Jason and Hercules must travel into the depths of Hades and Tartarus to obtain the Box in question. They even get help from a friend who had died previously.
A Tragedy of Impulsiveness: Jason's impulsive decision to steal meat off an altar (in a verse where he knows the Gods are real, and vengeful) leads to him suffering a werewolf curse.
Translation Convention: For convenience's sake, everyone in this ancient world of mythology speaks perfect English.
Trapped in Another World: Jason has lived in our world his entire life, and is now in Atlantis, brought by unknown means. Although, according to the Oracle, he was born in Atlantis.
Vagueness Is Coming: The soothsayer gives some very vague and cryptic warnings of doom and oncoming evil.
Lampshaded by Hercules in "Touched by the Gods pt2.
—Hercules:"That's the trouble with Oracles, they only ever tell you half the story".
We Help the Helpless: Jason, Hercules, and Pythagoras are pretty much heroes for hire after defeating the minotaur.
Wham Episode: The climax of "Pandora's Box" has Medusa opening the titular box which turns her into the monster she's destined to become which Jason knows from myth.
The Series 1 finale, "Touched by the Gods Part 2", not only introduces Jason's father but also reveals that Pasiphae is Jason's mother.
Wham Line: From the season one finale Aeson the Leper to Pasiphae, who is gloating over Jason's unconscious body, "He is our son". Cue everything crashing to a halt and Pasiphae having a mental blue screen moment as she tries to process it.