In this episode Harrison turns up at the hospital with a gun wound to the chest. He has been shot by a jealous husband who thinks he is dating his ex wife. Tru is then sent back to relive the day and save her brother.
Unfortunately Jack has been sent to stop her. All this saving of lost souls is changing the order of the universe. In a clever dialog between the characters Jack makes an offer. If he allows Tru to save her brother she has to promise to retire. Naturally she chooses life.
When Harrison is saved it sets off a chain reaction that leads to tragedy and heartache for Tru.
This is a well written series. We learn at the end that Tru's father use to do Jack's job. He tried hard to stop Tru's mother (probably by marrying her!) It has taken a while to settle the story line down. Now we will see how it pans out.