As Piper prepares to go on a business trip to Hawaii, she worries about how Prue and Phoebe will handle any magical crisis that might come up while she's gone. Meanwhile, Phoebe goes on a sight-seeing trip to Alcatraz, where she comes across a spirit. It takes possession of a security guard, in order to make his way across the water and seek revenge on the people who were behind his conviction. As a result, Phoebe and Prue have to find a way to banish the spirit before it's too late.

A demon, posing as Police Inspector Rodriguez tries to kill the charmed ones, and ultimately gets some help from another demon called Tempus. As time gets turned back until the demon succeeds in his mission, Phoebe has a troubling premonition where she sees Andy dying by the hand of the demon Inspector and unfortunately, the sisters are unsuccessful in saving him.