One Good Turn, Part 2

S1 E4: Louise, Marcus and Jackson arrive at Martin Canning's house where they discover a body battered to death. Martin pleads with Jackson to be his bodyguard. Now, Jackson must determine why a road rage attacker wants to kill him and another bystander who witnessed the incident, what the attacker has to do with a shady cleaning business and how it relates to the body Jackson saw at sea.