Seven of Nine's Borg implants begin regenerating after she experiences hallucinations and flashbacks from her life before assimilation. She flees Voyager in a shuttle to attempt rejoining the Borg. After escaping into a region of space governed by the B'omar, she discovers a wrecked Federation spaceship on an uninhabited moon. This ship is the Raven where the Borg assimilated her and her parents 20 years ago. 

A renegade Krenim warship with the ability to alter the time stream threatens the crew of Voyager as they pass through what has now become the Krenim empire.