ALVINNN!!! and the Chipmunks 2015 Season 4 Episode 3 Adventures in Babysitting / Alvin's Assistant Episode Title: Adventures in Babysitting / Alvin's Assistant Episode Description: Adventures in Babysitting:Alvin loses yet another bet to Bocarter, this time resulting in his having to babysit his four-year-old brother Neville. To get out of his loss, Alvin convinces Theodore to babysit Neville instead, which turns into a nightmare; with Bocarter gone for the afternoon, Neville soon begins getting into all sorts of mischief, from painting dinosaurs on his bedroom wall, to playing rough games with Theodore, to stealing his mother's jewelry from the parents' bedroom - and making sure its Theodore who is caught on camera doing it instead of him. When reviewing the security footage, and listening to Neville's lies, Bocarter is convinced that Theodore is a thief, and has him subdued until their parents return home for the evening to get a confession out of him, despite Theodore claiming innocence. Neville, meanwhile, doesn't want to lose his new playmate, so Theodore cuts a deal with him to tell his brother and parents the truth in exchange for freeing him, and he'll get him a new playmate: Alvin. Alvin's Assistant:Kevin dreams of becoming a D.J., so Alvin takes him under his wing to give him an inside look at the music industry . . . unfortunately, Alvin treats Kevin more like a servant than a protege, having him do all sorts of personal errands and chores for him. Dave decides to take over, and really guide Kevin on the path to his dream, from showing him how to mix and record music, and setting up an appointment with a producer to listen to his demos. Meanwhile, Alvin feels betrayed by Dave, and that Kevin has taken his place in Dave's eyes, so he sabotages Kevin's music samples to blow his shot at getting an internship. Soon regretting his actions, Alvin races to help save Kevin's meeting, and after some repair work, Kevin's samples impress the producer enough to bring him on as an intern.