21 Jump Street: 4x13
Research and Destroy
The Jump Street Cops are sent to investigate a college chemistry lab where it is suspected that new designer drugs are being manufactured.
4 - 1Draw the Line Sep. 18, 1989
4 - 2Say It Ain't So, Pete Sep. 25, 1989
4 - 3Eternal Flame Oct. 02, 1989
4 - 4Come from the Shadows Oct. 09, 1989
4 - 5God is a Bullet Oct. 16, 1989
4 - 6Old Haunts in a New Age Oct. 30, 1989
4 - 7Out of Control Nov. 06, 1989
4 - 8Stand by Your Man Nov. 13, 1989
4 - 9Mike's P.O.V. Nov. 20, 1989
4 - 10Wheels and Deals (2) Nov. 27, 1989
4 - 11Parental Guidance Suggested Dec. 04, 1989
4 - 12Things We Said Today Dec. 18, 1989
4 - 13Research and Destroy Jan. 08, 1990
4 - 14A Change of Heart Jan. 15, 1990
4 - 15Back from the Future Jan. 29, 1990
4 - 162245 Feb. 05, 1990
4 - 17Hi Mom Feb. 12, 1990
4 - 18Awomp-Bomp-Aloobomb, Aloop Bamboom Feb. 19, 1990
4 - 19La Bizca Feb. 26, 1990
4 - 20Last Chance High Mar. 19, 1990
4 - 21Unfinished Business Apr. 09, 1990
4 - 22Shirts and Skins Apr. 30, 1990
4 - 23How I Saved the Senator May. 07, 1990
4 - 24Rounding Third May. 14, 1990
4 - 25Everyday is Christmas May. 21, 1990
4 - 26Blackout Jun. 18, 1990