The crew races to finish the Black Widow in time for a trade show in NYC.

Sparks fly a Paul Jr. has just 10 days to finish a race-car-themed bike.

A tight schedule has left Paul Jr. in an explosive situation.

Paul Jr. dreams up a custom chopper to honor NYC's greatest heroes.

The crew hits the highway for 10 days of madness, mayhem and motorcycles.

Paul Jr. races to complete his homage to New York City's firefighters.

Paul Sr. teaches Cody how to build a bike the old-school way.

Paul Jr. dreams up a radical new design based on the Comanche helicopter.

It's a battle of wills as time runs out on the Comanche bike project.

A last-minute emergency has the Comanche project on the brink of disaster.

Mikey attempts to build his own custom chopper, but Paulie has other ideas.

Setbacks, stress and sibling rivalry may derail the blues bike project.

Paul Jr. creates a custom chopper from the tools of the trade.

Tempers flare as the deadline closes in on the crew's latest creation.

The crew kicks off a project to build a custom chopper for the NY Jets.

Paul Sr. builds a custom chopper in honor of America's forgotten heroes.