Colonel Sheppard begins to undergo a disturbing physical transformation after being exposed to Beckett’s anti-Wraith drug.

Nearly a third of Atlantis’s residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.

Norma receives some much-needed help, while Norman desperately awaits his mother’s return home. Emma and Norman follow more clues, leading to a big discovery.

Pan leads Henry to a secret cave, where he has convinced the boy that he alone can save magic – and Neverland itself. But a showdown between good and evil…