In this hilarious comedy, Brad, a smooth but nervous man, has been trying to win the affection of his wife Sarah's children ever since they got married. Despite his efforts to be a good "dad," he feels he can't compete with the imposing male figure of his father-in-law. However, everything changes when Sarah's ex-husband, Dusty, a tough and charismatic guy, bursts into their lives. Dusty, who seems to have a much closer relationship with the kids, challenges Brad's authority, and Brad sees his attempts to be a good stepdad fading in the shadow of this new rival.
The rivalry between the two men turns into a hilarious and disastrous game of one-upmanship. From school to home and family events, each tries to outdo the other in an attempt to prove who is the best dad. As the confrontations escalate, Brad realizes that at the end of the day, what truly matters is the love and happiness of the children, not a macho competition.
With a star-studded cast, the film explores the delicate balance of modern parenting, highlighting the importance of family and acceptance. Laughter abounds as Brad learns to find his place and enrich the lives of his kids alongside Dusty, in a conclusion that shows being a good father isn't always about winning the battle, but about working together.