In a quaint Iowa town, Bucky Larson (played by Paul Schneider) leads a life filled with innocence. Employed at a local grocery store and living with his family, his ordinary routine takes an unexpected turn when he discovers a shocking truth while watching adult films with friends: his parents were once renowned adult performers back in the 1970s. This profound revelation ignites Bucky's ambition to step into their shoes, leaving his quiet life behind to pursue fame in Hollywood's adult film industry.
However, Bucky's journey is anything but straightforward. With no roadmap to guide him through the intricate world of adult entertainment, he faces the additional hurdle of his less-than-ideal physical attributes, particularly an undersized penis that he fears will hinder his chances of success.
Upon arriving in Los Angeles, Bucky encounters Kathy (played by Odette Yustman), a sweet waitress who introduces him to Gary (played by Jim Piddock), the ex-roommate of musician John Mayer. As he adjusts to his new environment, Bucky doggedly pursues his ambition of becoming a porn actor, yet he stumbles into a series of humorous and cringe-worthy predicaments.
The climax of his misadventures unfolds at an industry party, where he endures relentless mockery from the self-absorbed adult film star Dick Shadow (played by Michael Rauch). The following day, he crosses paths with Miles Deep (played by Robert Davi), a once-prominent porn director who presents Bucky with an opportunity to film a test project. Unfortunately, their collaboration turns disastrous when Bucky falters, leading to an embarrassing premature ejaculation that ruins the shoot.
By an unexpected twist of fate, a crew member uploads the mishap to YouTube, turning Bucky into an unlikely internet sensation thanks to his unique attribute, which earns admiration from women while leaving men feeling secure. Despite his newfound fame, Miles ultimately opts out of signing Bucky to a formal contract, choosing to produce films on a more independent basis instead.
As their independent ventures take off, Bucky’s videos achieve tremendous success. Yet, amid this whirlwind of fame, he comes to realize that true happiness lies not in notoriety, but in love and meaningful relationships. Just as he gathers the courage to confess his feelings to Kathy, she unexpectedly turns him down, leaving him in despair. It later comes to light that Miles, in a fit of jealousy, had sabotaged their relationship by instructing Kathy to end things with Bucky.
Seeking comfort and closure, Bucky ultimately forgives Miles and embarks on a mission to reclaim Kathy's heart. He boldly interrupts a disastrous date she is having with Dick Shadow to profess his love. In a heartwarming twist, they marry and embark on a new journey together.
Fast forward a year, Bucky finds himself opening his very own steakhouse, a testament to his evolution from a sheltered small-town boy to a budding entrepreneur. However, his dreams are abruptly interrupted when Gary bursts into the restaurant, reminding him of overdue rent and delivering a sarcastic comparison to John Mayer, leaving Bucky to ponder the unpredictable nature of success and responsibility.
