John Wick is a mob hit man who upon falling in love with a woman, quits the mob. 5 years later, his wife dies and to make sure he's not alone she arranges for a dog to be brought to him after her death. One day some punks break into his home and they want Wick's car so they beat him up and they kill the dog. Wick sets out to find them and learns the leader is the son of his former employer, Viggo. Viggo then sends hitmen to take care of Wick but they fail, and John then decides to go after Viggo's son. Viggo learns of this and puts a price on John's head, leading to all the his former friends coming over him.