Dad vs. Lad follows the relationship, or lack thereof, of put-upon Step-Dad Herb and his wayward Step-Son Weston, in Seasons 1 and 2. Then in Season 3 and onward follows Herb's struggles with his biological kids.
In the series finale, Herb and Iggy have a talk about their past relationship, Herb's current status running a kid sanctuary, and Iggy's new plans for his future.