When Evelyn Valdez-Ward discovers that she's undocumented, she fears her dreams of becoming a scientist are over, and Samuel Achilefu's experiences growing up during the Nigerian Civil War inspire his passion for science. 

As a zoo volunteer, Lisa Yeager adores sharing her love of the wild, but one zoo patron is ruining that for her, and Anna yearns to be a scientist, but her strict mormon family doesn’t want her to become one.

When Saloni Singh’s mother is diagnosed with terminal cancer, Saloni is unexpectedly shoved into the role of caregiver and matriarch, and after her deaf mother has several strokes and begins experiencing hallucinations, Michelle Antonucci struggles to get her mom the care she needs.

When Julie Carrick Dalton goes to check on her bees one day, she notices something isn’t right, and Jon Schulz thinks rescuing a neglected apiary is the perfect opportunity to expand his beekeeping business.

When Cailin Gallinger struggles with her gender identity in college, her volunteer position in a plant lab becomes a lifeline, and in the midst of homelessness and abuse, Rose DF dreams of a life in science. 

When Sanjana Murthy misses her grandfather’s funeral, she struggles with the lack of closure, and Paul Barach impulsively decides to walk the Pacific Coast Trail to escape the grief of his girlfriend’s suicide.

When Milly McDermott is 15, she finds a grapefruit-sized tumor growing out of her vagina, and after a guy she was dating tells Dawn Harris she has two vaginas, she can’t help but wonder what is going on down there.

After Fernando Cuevas flunks out of college, he’s worried he’s destined to be stuck at his dead end Best Buy job forever, and when Sonia Rehal’s sister passes from complications caused by the rare disease lipodystrophy, she doesn’t know how to define herself in the absence of her other half.

Months into her fly experiment Michaela Agapiou still can’t catch flies efficiently and now she’s faced with the challenge of scaling up her experiment, and in order to get a good grade in her biology class, Ashely McKelvy designs her own experiment that requires her friends to drink a cup of coffee every 20 minutes.