In the aftermath of the warehouse's destruction, the Warehouse team races against the clock to find a way to undo time itself and put right what went wrong. However, Artie finds himself facing a difficult decision when he is warned that saving the warehouse will unleash an even greater evil.

While Pete and Myka investigate a series of artifact-related growth spurts, Artie reluctantly takes Steve and Claudia with him to track down Brother Adrian before he can steal more artifacts from the warehouse.

While Pete and Myka travel to Las Vegas to investigate two deaths where the people inexplicably fell from great heights, Claudia and Steven investigate two jockeys in London who went into comas after winning their races. Meanwhile, Artie gets a visitor to the warehouse.