The fourth season of Ghost Whisperer, an American television series created by John Gray, commenced airing in the United States on October 3, 2008, concluded May 15, 2009, and consisted of 23 episodes.

The series follows the life of Melinda Gordon (Jennifer Love Hewitt), who has the ability to see and communicate with ghosts.

In addition, the ghosts are mysterious and sometimes menacing in the beginning and Melinda must use the clues available to her to understand the spirit's needs and help them.

[2] In the fourth season, Melinda meets Eli James (Jamie Kennedy) after a fire at Rockland University who, after his own near-death experience, develops the ability to hear ghosts.

Melinda says goodbye to her close friend Rick Payne, who leaves Grandview on a research trip for the university.

Melinda works to get him to remember his past life and her, and succeeds after much difficulty and skepticism on the part of her friends.

Ghost Whisperer is based on the work of "Spirit Communicator" James Van Praagh,[3] who is co-executive producer[4] and regularly updates a blog about the show through LivingTV.

[8] One area on the lot is Courthouse Square from the Back to the Future trilogy, though it has been drastically modified to depict Grandview.

Melinda hears that there has been a fire at the Rockland University Building when Jim is called over there and hurries over, fearful for Professor Rick Payne, but he is revealed to be alive and well.

Whilst Melinda is trapped in the archives, she meets a group of seemingly benign ghosts calling themselves the watchers, who warn her that dealing with death may brush off on something she loves.

Mel and Eli have to figure out what happened to the bodies to stop the ghosts from being so angry and helping them move on, and it has something to do with the owner of the funeral home, who now has cancer and won't take his medication.

Mel works out who the ghost really is and helps him move on, finally tells Sam about her gift, and is crushed when he is sceptical.

Meanwhile, Jim misses his job and friends but realises that can't be his life anymore, and he eventually decides he wants to go to Med School.

When she tries to ask her about it, Serena ends up thinking Vampires are real, and is surprised when Mel reveals she was talking about a ghost.