Archer and the gang prepare for their most fantastic voyage ever.

The Jeffersonian team, with the help of Angela’s psychic friend, Avalon Harmonia (guest star Cyndi Lauper), is drawn into the twisted world of fortune tellers when the body of a local psychic is found decomposing in the trunk of a tree. However, when the team learns more about the victim’s personal life, those closest to her become suspects. Meanwhile, Booth and Brennan debate the pros and cons of Christine’s new imaginary friend and the team remembers Sweets on his birthday.

Meredith, rattled by the latest events, tries to figure out what to do about Derek. Meanwhile, Owen is shocked when his mother is admitted to the hospital.

The guys want to keep the park open for business.

When Michael gets himself in a bad situation, the Gladiators launch into damage control and put pressure on Cyrus to move up the wedding. Meanwhile, David takes the first step in executing his plan to take down B613.

The task force tracks a scientist who abducts disabled patients to conduct experiments on immortality. Now back in Washington, DC, Tom scrambles to save himself from new enemies.

Alan Cumming (play "Cabaret" and The Good Wife (2009)); Carey Mulligan (play "Skylight" and Far from the Madding Crowd (2015)). Also: Ludacris performs with The Roots.

The inner turmoil of a man destined to choose between two gods, and the two very different lives he lives. (Note: Compilation of all Athelstan's Journals which aired just after episode 3x06)

Preparations for the Paris raid pick up pace. Porunn and Judith both deliver children, and with new life there is also death. Athelstan tells Ragnar of his re-connection to his Christian faith. Floki interprets a sign from the gods that a sacrifice should be made.