Bad Grandpa .5 gives you a whole new perspective on the world of Irving Zisman with bonus scenes and pranks also featuring Spike Jonze as “Gloria” and Catherine Keener as Irving’s wife “Ellie”, plus a look at the evolution of Johnny Knoxville’s naughty alter-ego, the makeup effects, and a behind-the-scenes peek at the idiocy it takes to make a hidden camera movie in public.

86-year-old Irving Zisman is on a journey across America with the most unlikely companion: his 8 year-old grandson, Billy.

Clay is a young man in a small town who witnesses his friend, Earl kill himself because of the ongoing affair that Clay was having with the man’s wife, Amanda. Feeling guilty, Clay now resists the widow when she presses him to continue with their sexual affairs. Clay inadvertently befriends a serial killer named Lester Long, who murders the widow in an attempt to “help” his “fishing buddy.”

A high school filmmaker travels to Los Angeles to confront the man who murdered his girlfriend.