Wide-eyed Meaney and perpetual cynic Llewellyn are Cadets in the Lead Service, an organization that has appointed itself police of the whole of the Multiverse. And, as luck would have it, they’re the first Cadets in decades to go on actual field-training exercises in actual, proper parallel Universes.
However, luck is apparently not quite on their side – a catastrophic disaster on their first trip to an alternate Earth leaves them stuck with a broken-down JumpShip – every time they pull the lever that should send them back to H.Q, it instead flings them into a random alternate reality and toward...