The Lucas Oil Off Road Racing Series is officially over, but before the teams pack up and head home there's still one race to run.

The Challenge cup is the most anticipated race of the year, as the PRO 2's face off against the PRO 4's in hopes of winning $30,000.

Catch the action this Saturday, January 5 at 1 p.m. EST and 10 a.m. PST on CBS.