ALVINNN!!! and the Chipmunks 2015 Season 3 Episode 14 Theo's Big Night Out / The Bodyguard Episode Description: Theo's Big Night Out:The Chipmunks are invited to Cheesy's house for a sleepover, but Simon and Alvin are unable to attend, as Simon will be en route to an out-of-town convention, and Alvin is grounded. Theodore is afraid to sleep over at Cheesy's house without his brothers with him, but Alvin tries to help his brother conquer his fears and convinces him of all of the fun activities that are sure to be had at the party. Unfortunately, among those invited to the sleepover is Derek, who wastes no time in playing mean-spirited pranks against Theodore, goading the others into playing along with him. Theodore ends up locked up in the attic, losing his cellphone in the process, and when Alvin is unable to reach him, he senses trouble and goes to retrieve Theodore himself - while also taking time to give Derek a big taste of his own medicine. The Bodyguard:Realizing that other celebrities have their own personal bodyguards to keep crazed fans at bay, Alvin feels the need to have bodyguards as well, hiring Theodore, Kevin, and Cheesy to do just that. Things begin to get out of hand as the three start taking their roles as Alvin's new bodyguards seriously, going so far as to scare away anybody who even remotely tries to get near Alvin - including Miss Smith. Seeing that things are being carried too far, Dave orders Theodore, Kevin, and Cheesy to stop what they are doing, while also trying to drive his point across to Alvin that he has no need for personal bodyguards, as there is nothing and no one that poses any serious threat to him.