When a patient asks Johnny and Hank to go to his apartment and clear the browser history on his computer, they know it can only mean one thing: porn. But when the guys decide to watch what they're dealing with before hitting delete, they learn the brain-scarring lesson that some things can't be unseen. And unfortunately, it won't be the last time...
Meanwhile, a conversation about porn leads Johnny to brag to Theresa that he's kicked the smut habit because she's the only woman for him. But when he later realizes he forgot to clear his own browser history before lending her his iPad, he, Hank and Brian scramble to get to Theresa's before she gets home from a girl's lunch because, duh, Johnny was lying about giving up porn.