Buddy comedy following the endeavours of two policemen, friends since high school that due to their young looks get chosen to work in one special unit "21 Jump Street" where plain clothes officers infiltrate in educational centres. So Schmidt and Jenko pose as a students and enroll in a high school where a kid has died of an overdose of a new recreational drug. In the next few weeks they will have to find out whom the drug dealers are and, on a personal level, deal with traumas from the past as both had a tough time in their teenage years. Memories and recent experiences will put their friendship to the test, but will they pass?
The classical formula of the unlikely friendship never goes out of date, it is as engaging as ever. In here we don't see anything new but it is an entertaining film filled with some good jokes and reminiscences from the 90's telling us the story of a nerd and a popular trouble maker. The characters and the plot are well built, it is just that at the end everything happens too quickly and too easily, but it doesn't spoil the fun we had at the beginning.