- Story Arc: Thailog
- Characters: The Manhattan Clan, Xanatos, Owen, Dr. Sevarius, Thailog
- Enemy(ies) : Xanatos, Dr. Sevarius, Thailog
Last year, Goliath had fought one of Xanatos' Steel Clan robots but been injured in the process; Owen had treated Goliath's injury.
In the present, a series of strange events (an anonymous tip to Elisa about vandalism on an oil rig on the river, an order from Xanatos Enterprises to Dr. Sevarius to steal a certain statue from the top of the Eyrie Building during the day, and an anonymous call to Xanatos demanding a ransom of 20 million dollars for the stolen statue) lead the three of them (as well as Goliath, who refused to let Elisa go alone) to the oil rig, where the culprit turns out to be Thailog, a gargoyle cloned from Goliath's blood and bred to have Goliath's strength and Xanatos' cunning. Thailog locks them up, but they manage to escape before Thailog can blow up the oil rig; both Thailog and the ransom money seem to have been destroyed in the blast, but Xanatos is convinced that both he and his ill-gotten riches survived...
This Episode contains the following Tropes:
- The Bad Guy Wins: The successful bad guy in this case is Thailog. While Goliath, Elisa Maza, Xanatos, and Dr. Sevarius survive the destruction of the oil rig, even then it would merely have been a bonus as Thailog had already gotten his money and been able to fake his death so no one would try to look for him. Though Xanatos figures out Thailog's full scheme at the episode's end, but by then it is too late as he is long gone by then.
- Bastard Understudy: Thailog was one to David Xanatos, but by the time of his first onscreen appearance, he's ready to go his own way.
- Battle Amongst the Flames: Happens near the end when Thailog has set the oil rig on fire intending just before leaving his intended victims to die in the explosion when Goliath confronts him making one last attempt to persuade him to not go through with his plan.
- Cloning Blues: Thailog, when first encountered by Goliath and Elisa Maza, seems to be sad about his situation, but it is quickly proven to be an act by Thailog in order to get the former to lower his guard and gas him.
- Continuity Nod: Broadway demonstrates that he has continued to make efforts at literacy since the events of "A Lighthouse in the Sea of Time".
- Criminal Doppelgänger: Averted. Thailog makes no attempt at framing Goliath for any crimes. Also worth noting that the creators by their own admission wanted to avoid any attempt having Thailog posing as Goliath being that they felt that as being too much of a Cliché Storm.
- Faking the Dead: Xanatos figures out that this is what Thailog has done in order to get away with his twenty million dollars without anyone seeking to look for him.
- Foreshadowing: Owen Burnett mentions an individual known as "the Emir" has called Xanatos in order to make some sort of arrangement. It is eventually revealed what this deal is in the episode "Grief". Additional tidbit about the Emir: He was first mentioned in the episode "The Edge", but it was not until Season 2 that Greg Weisman decided to have him be an on screen character.
- Graceful Loser: Xanatos is usually this (especially when he manages to achieve a secondary goal). This episode presents one of the few cases when he averts this as a result of his Thailog project resulting in the loss of $20,000,000, an oil rig, and his pet project - in return for which he gained a new and highly dangerous enemy.
- It's Personal: The one single moment that Xanatos had took an affront to him personally. He isn't the most morally upstanding individual, but even he acknowledges that betrayal is wrong.
- Locked Out of the Loop: Dr. Anton Sevarius is under the impression that the plot being carried out is one of Xanatos' infamous schemes while Xanatos thinks that Sevarius has betrayed him. Eventually Thailog reveals that this plan was his doing.
- Oh, Crap!: Xanatos at the end of this episode when he realizes that Thailog is probably still alive.
- Retcon: This episode includes a flashback segment set one year prior to the present, during the time Xanatos was in prison back in the middle part of season one, in which a Steel Clan robot attacked Goliath and Owen took a blood sample from Goliath's wound.
- Unwitting Pawn: Both Sevarius and, surprisingly enough, Xanatos end up as the pawns in this episode. The latter gets special mention for making a clone of Goliath, teaching that clone his trademark trickery, and then getting duped by that same clone. In other words, he wanted a version of Goliath who was enough like him to be an ally. He got that mostly right.
- Xanatos Gambit: This trope is averted, for once, because Xanatos gains nothing as a result of this episode's scheming, no secondary goal or consoliation prize at all. Unless one counts the satisfaction for creating a creature that was as strong as Goliath and as cunning as himself.