Joe Scheffer, portrayed by Tim Allen, is navigating the tough waters of single parenthood following his recent divorce. As a skilled audio/visual specialist at STARKe Pharmaceuticals, he juggles his responsibilities while dealing with the emotional fallout from his split with his ex-wife Callie, played by Kelly Lynch. Together, they share a 12-year-old daughter named Natalie, who finds her weekends spent with Callie and her new boyfriend Rick, portrayed by Ken Marino, particularly unpleasant due to Callie's strict vegan lifestyle.
At work, Joe feels invisible, especially with his boss Pat Chilcutt, played by Robert Joy, constantly overlooking him for a long-desired promotion. Despite his frustrations, Joe's warmth shines through when he helps Meg Harper, the office wellness coordinator, set up her stall. Meg remembers Joe's dedication, highlighting his good heart amidst the struggles.
In Natalie’s eyes, Joe is nothing short of a hero. Though he dreams of being a writer, he has found himself in a role as a video communications specialist. Natalie, recognizing her father's hidden talents, encourages him about his playwriting aspirations. However, a turning point occurs during "Bring Your Daughter to Work Day," when Joe sees his colleague Mark McKinney, played by Patrick Warburton, parking in a spot reserved for long-term employees, despite only being there for seven years. As tensions rise, a confrontation escalates when McKinney humiliates Joe in front of Natalie, leading to a painful few days of avoidance between father and daughter.
When Jeremy, a company executive, learns of the incident, he fears Joe might take legal action. Although Jeremy views Joe as a failure due to his personal setbacks, Meg sees the real Joe—dedicated, hardworking, and deserving of respect. After a few days off, Meg visits Joe to coax him back to work with the offer of a designated parking spot. Despite her efforts, Joe’s low spirits persist until Meg’s simple yet provocative question, "What do you want?" reignites his fighting spirit.
Determined to regain his dignity, Joe challenges McKinney, suddenly finding himself the office's underdog hero, earning admiration from his colleagues. Even Cade, portrayed by Wolfgang Bodison, invites Joe into the exclusive club 13, fueling Joe’s confidence as he revamps his wardrobe and gains attention from Abby Manheim, played by Cristi Conaway. However, both Meg and Natalie worry that Joe's quest for revenge will ultimately lead to trouble.
As Natalie, a brilliant student facing her own challenges at school, struggles due to her father's preoccupation with the impending fight, Joe turns to Chuck Scarett, played by Jim Belushi, for martial arts training. With newfound skills and a promotion at work boosting his morale, Joe’s life seems to be on an upswing until Meg uncovers Jeremy's ulterior motive behind the promotion; he only offered it to prevent Joe from suing.
Facing an ultimatum from Meg—that their relationship hinges on his decision about the fight—Joe finds himself at a crossroads on fight day. Arriving at the designated location, he ultimately recognizes that fighting McKinney would be childish and not worth the consequence. In a surprising twist, Joe declines the battle, and when McKinney offers a sincere apology, Joe accepts it, allowing him to reconcile with both Meg and Natalie and reaffirm his role as their steadfast and loving father.