Complex sentence: Later that night, the two brothers and Grace are assigned to patrol the money train, Charlie discovers a grate in the floor and a ladder leading to Central Park, a brawl breaks out between John and another officer, quickly involving the entire squad.
Split into simpler sentences: Later that night, the two brothers and Grace are assigned to patrol the money train. As Charlie discovers a grate in the floor and a ladder leading to Central Park, a brawl breaks out between John and another officer, quickly involving the entire squad.