Picking up where the series left off in the stunning mid-season cliffhanger "Warehouse 13" kicks off with the shocking revelation that a vengeful Artie has infected not only the team but the entire world with the deadly Black Orchid Artifact. If Pete, Myka, Claudia and Steve are unable to contain the damage within 24 hours, the world will face a pandemic the likes of which has not been seen since the Dark Ages.