Season
Season 7 Episode
- Season 5 Vegas
- Season 5 Watching the Baby
- Season 5 Goodbye Kitty
- Season 5 Thanksgiving
- Season 5 Malcolm Films Reese
- Season 5 Malcolm's Job
- Season 5 Christmas Trees
- Season 5 Block Party
- Season 5 Dirty Magazine
- Season 5 Hot Tub
- Season 5 Ida's Boyfriend
- Season 5 Softball
- Season 5 Lois's Sister
- Season 5 Malcolm Dates a Family
- Season 5 Reese's Apartment
- Season 5 Malcolm Visits College
- Season 5 Polly in the Middle
- Season 5 Dewey's Special Class
- Season 5 Experiment
- Season 5 Victor's Other Family
- Season 5 Reese Joins the Army (1)
- Season 5 Reese Joins the Army (2)
Malcolm in the Middle - Season 5 Episode 13 Lois's Sister
8.47 22 minutes Lois' younger sister, Susan, pays the family a visit and brings with her expensive gifts for the boys, biting remarks for Lois and a cold shoulder for Hal – whom she has never forgiven for dumping her for Lois. Lois and Susan's competitive relationship takes a turn for the worse when Susan gives Malcolm and Reese her prize '65 Mustang convertible. But when Lois discovers that Susan needs a kidney transplant, she puts her anger aside and offers to donate her kidney to Susan, which Susan only sees as the perfect opportunity for Lois to one-up her.
