Eric hasn't heard from his friend, Tripp, in years—until Tripp, now a Hollywood stuntman, invites Eric to his Beverly Hills mansion to meet his pregnant supermodel wife, Zoe. With Zoe impatiently wanting to resume her modeling career, she's looking for a surrogate mother for her five-month-old fetus. Eric happens to be the best candidate, and he'll be well compensated. He reluctantly agrees, and the transfer is made.
But when Zoe is later imprisoned for a crime, the now-pregnant Eric finds Tripp devastated. Eric can't stand seeing his friend upset. And the due date is coming up fast. Luckily, Eric knows of a way to make things better: Swap Mate. It'll be like Zoe was never gone...