Episode 4 of the Underdogs will take brothers Adam and Noah Levy into new territory after a rain storm settles over the upcoming time attack event. Having never attempted a race in these conditions before, the brothers scramble to prepare the car for the wet weather ahead, knowing that their Subaru will be tested to its limits at the notoriously treacherous Infineon Raceway in Sonoma, CA. Will they be able to set a competitive time? Will the car even survive?