Patrick takes a murder case in Napa so that he can continue his investigation into Sheriff McAllister and Red John, and Rigsby and Van Pelt contemplate their future now that they are free to date after the release of a new office policy.
With the final clue in hand, Jane attempts to gather the remaining Red John suspects - Gale Bertram, Bret Stiles, Reede Smith, Ray Haffner and Tom McAllister - in one place in hopes of finally revealing his identity.
Grace is kidnapped by the killer who has been hunting former CBI members, but when the prime suspect appears to have an airtight alibi, Jane must rely on all his skills to locate her before time runs out.
A woman whose body is found near the grounds of a prestigious private men's-only club turns out to be a prostitute, and one of the club's members in legal trouble offers Abbott a bribe to get the feds off his back.
While Patrick is part of a sting to catch a mobster suspected of jury tampering to avoid a murder charge, agent Cho finds a new clue that could take the sex trafficking investigation in a new direction.
After the FBI discovers that the sex slave case is actually an illegal organ harvesting case, Patrick and Lisbon go after one of the group's suspected leaders before the latest group of kidnapped girls are lost.