Ecologist Cylita Guy finds unexpected adventure when she studies bats in the field, and honeybee nutritional ecologist Rachael Bonoan begins to worry she's allergic to the bees she studies.

Jean Le Bec travels abroad to find a solution to her dental problem, and science writer Michael Lemonick interviews an old friend who lost the ability to form memories.

Biochemist Katie Wu's mother won't believe she's lactose intolerant, and neuroscientist Oliver Vikbladh finds answers about his sister's disability.

Erica Silberman tries to care for her mother, who has Alzheimer's, and Pat Furlong searches for answers when her sons are diagnosed with a dangerous condition