Waxing nostalgic about the bittersweet passage from childhood to puberty, four childhood girlfriends — Teeny, Chrissy, Samantha and Roberta — recall the magical summer of 1970. During their walk down memory lane, they reconcile experiences with boys, secrets, bullies and more.

In response to political pressure from Senator Lillian DeHaven, the U.S. Navy begins a program that would allow for the eventual integration of women into its combat services. The program begins with a single trial candidate, Lieutenant Jordan O'Neil, who is chosen specifically for her femininity. O'Neil enters the grueling Navy SEAL training program under the command of Master Chief John James Urgayle, who unfairly pushes O'Neil until her determination wins his respect.