After such a big battle, you'd think the show would be done. But it's back, in this season premiere of Senior vs. Junior. Senior is well-rooted for battle, but Junior plans on destroying his dad's business regardless; by building a rival shop just around the corner. Of course Mikey will be there along with an old friend Vinnie.
OCC builds a money-themed bike for longtime client Alan Brownfeld, while Junior and Mikey head to Louisiana to consult on a custom gun design with Will Hayden of Red Jacket Firearms and Sons of Guns. Then Senior announces his reconciliation with estranged son Dan, and Junior and PJD unveil their Jared Allen charity bike to a roaring crowd.
As Senior makes an offer that he claims Junior rejected — and Junior claims Senior took off the table — both parties wonder whether the other really wants to move forward. PJD starts their charity-bike build for CrankyApe, one of two they are building for the company, while at OCC, the crew is underway with a triple bike build for Trans Am Depot. Then, Senior's dog dies and Junior reaches out to his father.
Deciding he'd like to commission a painting, Senior continues to reach out to Mikey, who seeks counseling from Vinnie. In Atlanta, PJD reveals the bike for Cepheid, a medical technology company, to an impressed crowd, while in Indianapolis, OCC unveils the all-custom reverse trike for Beck's Hybrids as well as a bike to be used to raise money for the We Care for Orphans charity.
In celebration of its 100th anniversary, Dekalb commissions a bike from PJD to be auctioned off with the proceeds going to benefit the American Red Cross. Meanwhile, OCC begins a build for Cell Buckle, a company that builds cell-phone holders for vehicles, to be unveiled at Sturgis. But when a dissatisfied Senior decides they must start from scratch, an offended Jason does the unthinkable.