Gianna reveals her shock at finding out that she has two uteruses. Lindsay retells the story of an alligator feeding gone wrong. Hannah and Ethan's dance moves leave Hannah facing paralysis. Nick shares the heroic story of saving five siblings.

Chan faces a medical mystery threatening her vision. College sweethearts Erin and Jack's relationship is tested by a devastating accident. Rider finds something lodged in his ear. Nicole codes during labor.

A woman goes into labour but flatlines on the delivery table. Raccoons invade a house, and an extreme workout leads to calling 911.