Jacob Tierney is used to directing actors on scripted television. But with his latest project, the creator of Crave’s “Heated Rivalry” is venturing into unscripted TV for the first time, teaming up with a pair of foul-mouthed yet family-oriented brothers from Alberta.

The Montreal-born filmmaker serves as an executive producer on Prime Video’s new reality series “Young Farts Trailer Parts.” At Amazon’s Upfront presentation in May, Tierney joked that the show’s stars — brothers Jagger Glowatsky and his younger sibling, Dawson — wouldn’t listen to a word he said.