Kate surprises Toby at work; Kevin and Randall attend a fundraiser for Sophie's hospital; Jack takes the boys on a camping trip, leaving Rebecca to deal with some unexpected news.
Former team member Catherine Willows comes back to help investgiate a cold case that has haunted the CSIs.
A dangerous new player in Lexington puts Raylan on a collision course with a Dixie Mafia hitman; Ava takes over Boyd's business while he is back in jail.