Two best friends in a small Scottish town in the summer of '94 who head out for one last night together before life takes them in different directions. Going to an illegal rave, the boys journey into an underworld of anarchy, freedom and collision with the law as they share a night that they will never forget.

René González (Edgar Ramírez) is a Cuban pilot who leaves his wife (Penelope Cruz) and young daughter behind in the communist island nation to defect to the United States and begin a new life of freedom in the early 1990s. But René is not the upstart American striver he appears to be. Joining forces with a group of Cuban exiles in South Florida known as the Wasp Network — led by undercover operative Manuel Viramontez a.k.a. Gerardo Hernandez (Gaël García Bernal) — he becomes part of a pro-Castro spy ring tasked with observing and infiltrating Cuban-American terror groups intent upon attacking the socialist republic.