Kaz and Oliver must study for a Mighty Med exam that will allow them to learn deeper secrets of Mighty Med, but if they fail, they will be cubed. Meanwhile, Wallace uses an optical image replicator to turn Clyde into an identical look-alike of Kaz. Clyde successfully follows Oliver into Mighty Med, but when he tries to steal the missing half of the Dyad of Nebulon, Horace senses something is amiss, and sends the guards after him, just as the real Kaz walks back into Mighty Med. Horace catches a Kaz and thanks to Oliver, doesn't cube him, but erases his memory. The guards send out the Kaz, and the other Kaz appears. Oliver realizes that this Kaz is the real Kaz, and the other one was really Clyde (though he doesn't know its Clyde). Horace explains that the other half of the dyad is with a villain named Catastrophe, who upon being defeated split into two humans (Wallace and Clyde). Back at The Domain, Wallace is trying to recall Clyde's memory of Mighty Med, which was successfully wiped. Kaz and Oliver pass their exam, and learn the secrets of Mighty Med. Meanwhile, when Alan comes to Skylar for advice on a girl he likes, she suspects it's her, and tries to dissuade him, only to learn it was a nurse who's also an octopus. (thetvdb.com)