Bones: Season 2, Episode 18

2 - 18: The Killer in the Concrete

The remains of a body are discovered encased in concrete, and Booth has a hunch the victim is connected to an organized-crime boss. When Booth suspects a dead, former hit man (Hugh Kennedy) is apparently alive, he contacts the bounty hunter who found what was left of his remains (a severed leg). When Booth travels to Baltimore to find the hit man, he gets knocked unconscious and tied up by Kennedy himself, but Kennedy soon flees, leaving Booth relatively unhurt whilst still restrained. Meanwhile, Brennan's estranged father pays her a visit. Brennan later appeals to her father to find Booth, having not heard from him. When they get to Baltimore, they find Kennedy's hotel room and the bounty hunter inside. Brennan gets violent with her when she finds Booth's tooth in the hallway, suspecting the bounty hunter's involvement in her partner's abduction. Meanwhile, Booth is being tortured by Kennedy's former rival crime boss, Gallagher and his partner. When Booth is finally located in an aircraft hangar, Brennan and Max come to his rescue. When Gallagher tries to escape, he's arrested by the FBI waiting outside while his partner injures himself when Booth tips over his chair. Booth tries to arrest Max even in his state, given Max's status as a fugitive. Brennan lets her father go so she can help Booth.