When Eon increases his beardy sense, he discovers that there's a traitor at the Academy -- and Eruptor is convinced it's Kaossandra.
Eon decides to bring on hotshot pilot Captain Flynn to help the team, only to discover that he might not live up to his legend.
At Istanbul's Çiya, "food anthropologist" Musa Dagdeviren meticulously re-creates regional Turkish dishes in a bid to keep them from going extinct.
Phyllis sounds an alarm, Sharon opens up to Rey, and Billy finds himself in hot water.
Three months after quitting the Phoenix Foundation and moving to Nigeria, Mac puts aside his differences with his father and returns when he hears Jack is the target of a murderous dictator he double-crossed.
Privates Phil and Mike find themselves in a precarious situation as tensions escalate.
Featured magicians: Ed Alonzo, Billy Kidd, Nathan Burton, Chipper Lowell, Andi Gladwin, Jason Bird, and Greg Frewin.
Michael bosses his son with "dry history" in Germany's Bavarian Alps, while Jack tries to liven up their first stop with motorcycles and skies.
Jack and Michael channel Harry Houdini and take a boat ride in Budapest, and then have an odd border control experience on a road trip to Transylvania.
In Romaina, Michael and Jack pay a visit to "royalty" and an unusual cemetery. Later, they go to a little visited Moldova to meet Sunstroke Project.
Jack treats his father to a luxurious birthday trip to Istanbul, where they visit a hookah lounge and Michael recalls a wild night with David Bowie.
Michael puts Jack through military training in Kiev, and then they head to Chernobyl before Jack drags his dad to a clown festival in Odessa.
Rachel is determined to beat the final level of the game, but Frankie and Dayton worry they are putting her in danger; Simone believes she has a crush on Cole, which leads Frankie to feel jealousy for the first time.
Mexico's extreme climate and topography make it a struggle to provide for a new generation.
The team travels to Plymouth, Mass., to learn about the first Thanksgiving; Butterball University in Naperville, Ill.
Under the watchful eye of two friendly guides and several secret agents provided by the North Korean government, Michael starts his journey by visiting Pyongyang, the capital of North Korea.
When David Harmon is bludgeoned to death in his bed, his traumatized wife tells a lurid story of masked burglars, but police start to suspect there is something evil afoot in this conservative religious town.
New doctors continue to shake up the hospital in typical Grey Sloan manner. Meredith bonds with a patient while Jackson struggles with the meaning behind recent experiences; and after making a life-changing decision, Jo forms an unexpected alliance.
The doctors at Grey Sloan Memorial vie for a new position. Meredith is seemingly distracted and struggles to stay focused, and Maggie finds herself the keeper of a big secret while Amelia and Owen try to figure out their relationship. Meanwhile, Jo and Alex's honeymoon doesn't go exactly as planned.