Brenda and Donna attend an animal rights rally and are crestfallen when the university refuses to suspend animal testing. After Rocky dies of cancer, Brenda becomes involved with a small group of radicals. She serves as lookout when the group breaks into the university research building, and tries in vain to save Andrea's lab (which does not harm animals in its testing). Brenda is arrested. Kelly and Brandon are furious when Dylan refuses to fund Lucinda's film. He finally tells Kelly that Lucinda came on to him. Brandon breaks up with Lucinda, and Kelly confesses her kiss with Brandon. Dylan races over to the Walsh house to fight Brandon, but the tension is defused when he accidentally punches Steve. (At the end of this episode, Tori Spelling thanks the audience and 90210 crew for the making of this 100th episode) . Music: 'Trans-Island Skyway' by Donald Fagen.

Beverly Hills, 90210 Season 4 Episodes...

• s04e01 - So Long, Farewell, Auf Wiedersehen, Goodbye
• s04e02 - The Girl From New York City
• s04e03 - The Little Fish
• s04e04 - Greek to Me
• s04e05 - Radio Daze
• s04e06 - Strangers in the Night
• s04e07 - Moving Targets
• s04e08 - Twenty Years Ago Today
• s04e09 - Otherwise Engaged
• s04e10 - And Did It... My Way
• s04e11 - Take Back the Night
• s04e12 - Radar Love
• s04e13 - Emily (a.k.a. The Pink Pearl)
• s04e14 - Windstruck
• s04e15 - Somewhere in the World It's Christmas
• s04e16 - Crunch Time
• s04e17 - Thicker Than Water
• s04e18 - Heartbreaker
• s04e19 - The Labors of Love
• s04e20 - Scared Very Straight
• s04e21 - Addicted to Love
• s04e22 - Change Partners
• s04e23 - A Pig Is a Boy Is a Dog
• s04e24 - Cuffs and Links
• s04e25 - The Time Has Come Today
• s04e26 - Blind Spot
• s04e27 - Divas
• s04e28 - Acting Out
• s04e29 - Truth and Consequences
• s04e30 - Vital Signs
• s04e31 - Mr. Walsh Goes to Washington (Part 1)
• s04e32 - Mr. Walsh Goes to Washington (Part 2)

Beverly Hills, 90210 Show Summary

This long-running drama dealt with the experiences of a group of young people in Beverly Hills, CA as they navigated high school, college and ultimately the real world. The series focused on their travails as they tried to maintain their friendship while dealing with romances, family and personal crises, tragedies and countless drug addictions.