Mel does everything in her power to save a gravely wounded Sandy, while Griffin finally confronts the reality of his addiction.
Blake gets back at the Squaliens after he uses an invisibility ring they lose.
Without any modern conveniences, 14 men fight for survival on a deserted island.
Dan Snow boards a yacht on the English channel to get a sense of the naval battle, revealing how tensions between England and Spain were fuelled by religion, piracy and Elizabeth I's rejection of King Philip II of Spain as a suitor 30 years earlier, and how a missed opportunity could have resulted in disaster.
The final four bakers must tap into their basic training to create memorable Memorial Day desserts to make it to the finale. They'll have the freedom to create the dessert of their choosing as long as it's red, white and blue.
Philip looks at the Ford Transit, the revolutionary van as big as a lorry that drove like a car, and other motoring workhorses
Jon prepares for conflict. Sansa tries to talk to Theon. Brienne waits for a sign. Stannis remains stubborn. Jaime attempts to reconnect with family.
Richard is faced with a tough decision, regarding the future of Pied Piper. Dinesh flirts with a woman online.
Lady Penelope, Parker and Gordon visit the Amazon desert, where an archaeologist shows them round an ancient temple. When they all become trapped inside, the academic refuses to let them call for help, fearing for his reputation - so the trio of heroes must put their wits to the task of finding an escape route.
A workaholic mom and a loner are challenged to survive three weeks in Thailand.
As the investigation into Sandra Iverson's savage murder appears to be going cold, a police canine team uncovers the trail of the unlikely killer.
Jackie and Eddie make a purge their stash. Dr. Prince and Akalitus bond.
Milt survives a car bombing and enlists Russ to track down his would-be assassin, leading to startling revelations about why Milt is the way he is and what brought him to Battle Creek.