After suffering a brain injury from a bank heist gone wrong, MacDonald develops amnesia and is put into a prison psychiatric ward. Following his seventh year of incarceration, he is coerced by an inmate and a ward doctor to break out of prison, and he is injected with a serum that forces him to relive the life he has forgotten. MacDonald must now elude a local detective, a toughened FBI agent, and the drug's dangerous side effects to recover the stolen money.