During the middle of a routine foiled prison break, Batman and Green Arrow are summoned by none other than Merlin himself to save Camelot from Morgan le Fay. The two heroes must battle her brainwashed minions, a demon, and their own competitiveness.
Tropes:
- And the Adventure Continues: Batman and Green Arrow are alerted to a bank heist in Star City, so they try to break their tie.
- Bowdlerization: The chant used to make Jason turn to Etrigan is taken almost entirely from the comics, but leaves out the line about the "prince forever damned".
- Brainwashed: Jason Blood and Etrigan, and later Batman himself, thanks to Morgan's sorcery.
- Bullying a Dragon: In the teaser, Guy Gardner learns the hard way not to taunt the tiny prison, and even less so to pour his coffee on him.
- Cain and Abel: Morgan has taken Camelot over from her brother, King Arthur, and plans to kill him.
- The Cameo:
- The cold open is a veritable who's who of the Green Lantern Corps.
- The attempted prison breakout features a number of villains, including Grodd, the Mad Hatter, Clock King, Felix Faust, Kite Man, and a number of foes from Batman (1966); such as King Tut, Bookworm, Louie the Lilac, Ma Parker, the Archer, Egghead, Shame and Marsha, Queen of Diamonds.
- The Chosen One: Merlin predicts Batman is the one chosen to wield the Sword in the Stone, much to Green Arrow's irritation. Ultimately, he can't pull the sword free and neither can Green Arrow, but they can do it together.
- Composite Character: Morgan is said to be Merlin's pupil who's betrayed him, which is usually Nimue, who is (at least in DC's version of events) an entirely separate person.
- Continuity Nod: Gorilla Grodd is still in human form from his last appearance.
- Cue the Sun: The skies go dark when Morgan finally confronts Bats and Green Arrow, and instantly becomes sunlit the minute she dies.
- Evil Brit: Morgan le Fay.
- Facepalm: Merlin in response to the heroes continuing to argue, even after saving the day.
- "I Know You're in There Somewhere" Fight: While fighting the transformed Batman, Green Arrow keeps trying to reason with him. It finally seems to work when Green Arrow is dangling off a cliff, but Morgan appears to keep Batman under control.
- Ignored Aesop: After a frustrated Merlin sends them back to the present, Green Arrow concedes that he and Batman are too competitive and says there's nothing wrong with being tied (especially since claiming Excalibur required them working together). Upon learning of a bank robbery, though, Green Arrow resolves to beat Batman to the punch and break the tie. Batman's narration concedes this is entirely juvenile and unbecoming, but he's all in all the same.
- Loophole Abuse: According to Merlin, no form of sorcery can prevent The Chosen One from claiming Excalibur. Morgan le Fay demonstrates, though, that nothing can stop her from remaking said chosen one into a slave that will claim the prize and hand it over to her.
- Made a Slave:
- Jason Blood and Etrigan under Morgan. And Etrigan used to be Merlin's before that.
- To claim the sword, Morgan transforms Batman into a red-clad knight under her control.
- No Ontological Inertia: All of Morgan's spells stop the minute she dies.
- Not So Above It All: Batman can be just as competitive as Green Arrow; he's just better at hiding it (most of the time).
- Oh, Crap!: Green Arrow and Merlin, after Batman is transformed into Morgan's slave.
- Red Eyes, Take Warning: Batman when turned into Morgan's slave, to match his new armor.
- Rhymes on a Dime: Etrigan speaks in rhyming couplets.Etrigan: When will you mortals learn? A demon's fate's not your concern!
- Scaled Up: In classic evil witch tradition, Morgan turns herself into a dragon to kill Batman and Green Arrow.
- Skewed Priorities: In the face of Batman being turned into Morgan's slave, Green Arrow continues to grouse about being overlooked and says he could just as easily be The Chosen One.
- Taken for Granite: The fate of King Arthur and his knights under Morgan. In her dragon form, she can breath fire that turns anyone it hits to stone, including Merlin and Etrigan.
- This Cannot Be!: Morgan over Batman being free of her spell.
- Vitriolic Best Buds: Batman and Green Arrow bicker endlessly, but do respect one another. It's just they argue a lot. Eventually, Merlin gets so fed up of it he just zaps them back to their own time rather than put up with any more.
- Wham Line: How we learn Morgan's right-hand man isn't any normal mook.Morgan le Fay: You know what you must do, my pet.
Jason: Jason Blood lives to serve. - What Measure Is a Non-Human?: Morgan in her dragon form goes up in a spectacular burst of light, with no body left behind. Neither Batman or Green Arrow comment on the fact they apparently killed someone.
- "You!" Exclamation: Morgan when Green Arrow turns up alive.
