Johnny Michaels

Ryan travels to Mexico, with a stubborn Seth in tow, to put an end to his turmoil in the only way he knows how, but he comes up empty in his quest for revenge. Meanwhile, Seth meets some new friends in Mexico, including a Marine who helps him find what he is looking for, and Harbour School's new female dean of discipline, Dean Torres forces Kaitlin and Julie to work together on Harbour's clothing drive.

Magnum helps a struggling fisherman who's had a pricey tuna stolen. But he soon discovers its thief needs his help, too.

Jack takes drastic steps to ensure that the NSC never finds out the truth about Syd's murder of a Russian diplomat, but his actions place a heavy strain on Vaughn's marriage, as Lauren gets closer to the truth about Syd. Meanwhile, Syd agrees to go on a mission with Sloane in order to thwart plans to change the operating system to a deadly weapon.

A 12-year-old altar boy is the prime suspect after a priest is shot. The CSI team uncover evidence of abuse at the boy's home, but face more questions than answers when his father is bludgeoned to death. Elsewhere, Horatio and Delko investigate when the charred remains of a pregnant woman are found.