Fast Five: Hobbs let them go HD CLIP

What’s happening in this movie clip?
Dom (Vin Diesel) is about to get shot by a criminal when Brian (Paul Walker) appears from behind and shoots the guy dead in the middle of a bridge. Seconds later, Hobbs (Dwayne Johnson) arrives in a police armored truck accompanied by Elena Neves (Elsa Pataky). Hobbs shoots Herman (Joaquim de Almeida) dead. He then says that Dom and Brian have 24 hours to escape from him, leaving the money behind, and after that, he will hunt them down and find them. Dom and Brian get into a car and drive off.