Just before she leaves for her dream opportunity to teach marine science on the Red Sea, Latasha Wright gets a call that puts her plans in jeopardy, and growing up, Sheena Cruickshank's teenage older brother inspires her love of science, but then one summer he returns from university with a lump on his arm.

A question that Laura Spink asked her parents as a kid comes up again when her own child begins to ask similar questions, and after Denise Coberley brings up her doubt in the Bible to her adoptive religious parents, she finds herself on a journey of self-discovery.

Parmvir Bahia struggles to appease her parents’ desires for an Indian son-in-law while also satisfying her own desires to be a scientist, and Monica Dunford finds physics cold and boring until she gets a summer job in a lab that changes everything.