Tru Calling - Season 1 Episode 19 D.O.A.

Tru and Davis remain stunned by the revelation that Jack can relive days like Tru. Excited to have a new partner, Tru teams up with Jack to ensure a doctor's dying wish to help others in his life, but as the day progresses, Tru becomes increasingly suspicious of Jack's intentions. And when Jack attempts to stop Tru from saving an innocent victim, she comes to the startling realization that he isn't her ally but her enemy.