Still feeling guilty about her adoptive parents' death, Paige gets some help from Leo and the ghosts to go back to the day of their car accident so can work through her feelings and discovers how she was able to live through the accident. Meanwhile, Phoebe and Cole get possessed by a pair of ghosts who look to finish a job from 50 years ago, and as a result, Piper has to find a way to keep the ghosts in succeeding in their mission.

While at work, Paige discovers that a 10 year-old boy in foster care has the ability to magically start fires. Upon learning that his foster parents are actually demons who are attempting to get him to use his powers for evil, she, Piper, and Phoebe try to convince him to use his powers for good. Meanwhile, Cole proposes to Phoebe now that they are no longer possessed by spirits. However, when she puts on Grams' engagement ring, she falls under its magical spell and turns into a 1950's housewife. Also, Cole goes to work with Paige at the social services office.