On a dull night in Orlando, young Josh Flaum decides to experiment with drugs he can buy over the counter, and after Will Tran accidentally cheats his way to a high school math award, he has to grapple with whether or not to come clean.

Biologist Heather Hamlin leaves the safety of the lab for her first field assignment: tagging alligators, and as an unconsenting "face of diversity" at a statistics conference, Dan Simpson contemplates the role of his gay identity in his academic life.

In his last year of medical school in Colombia, Gabriel Duran Rehbein finds out his father has been kidnapped, and after seeing her dad lose control of his mind, art student Minerva Contreras decides to study the brain, in hopes of understanding him.

Barbara Abernathy has always felt at home in the ocean, but when she undergoes a bone marrow transplant, her doctor tells her she can't go into the water for a year, and with only two days to find and extract a sample from one of the oldest coral colonies in the world, Konrad Hughen finds himself at the bottom of the ocean with a broken drill bit.

When the local science museum looks to hire performers, David Nett believes he's the perfect man for the job, and after finding out her uterus never developed, scientist Chivonne Battle searches for an alternative way to become a mother.

Comedian Zack Stovall reevaluates his past battles with his mother in light of a new diagnosis, and Audrey Kearns' big opportunity to appear as a panelist at a "nerd-convention" turns disastrous when she has an unexpected reaction to a new antidepressant.

After passing out on the NYC subway, comedian Mike Brown is forced to take a deeper look at his mental health, and Emily Yarrison survives her suicide attempt and has to ask herself a whole new set of questions.

Heather Williams trades in her physicist labcoat for motherhood, and wonders if she can return, and Mary Garcia-Cazarin discovers she's pregnant just as she is offered a prestigious science policy fellowship, and worries about whether she can't cope with both.

A parent-teacher conference leads Eugenia Duodu to question whether she can be a scientist, and At 13 years old Misha Gajewski has to undergo a jaw surgery to fix a face she is just getting used to.

In a battle over her apartment's air quality, cat foster mom Tracy Rowland discovers how to use her kitten's parasite as a weapon, and Gianmarco Soresi learns more about cats than he ever wanted to when his girlfriend adopts five.