Plot summary
In the season finale, Jill dies suddenly (off-camera) from a drug overdose. Bailey refuses to believe she's dead and tries to bury his grief by going out with Will, getting drunk, and behaving recklessly. In the meantime, Griffin Holbrook (guest star James Marsden ), Jill's moody older brother, shows up and does not want to have any business with Julia, so he avoids her. Finally, Charlie and Kirsten get engaged.
Credits
Adapted from Wikipedia contributors, List of Party of Five episodes. HTML formatting and reference markers removed.