Mike (Jesse Eisenberg), a pothead with no interest in anything going on around him, lives in a small, sleepy town with his girlfriend Phoebe (Kristen Stewart). His only daily routine is working at the grocery store and getting quality "stuff". He probably never thought he could deal with much more serious matters. That is, until one night, when unknown people show up at his car... Mike soon discovers that he is a sleeper agent. Unfortunately for him, an agent destined for elimination. Everyone is after him and Mike has no choice but to find the courage to start fighting. In the end, it won't be that hard, all the skills from his training have remained. The worst thing will be his memories, which have literally evaporated from his head over time.