Wikisimpsons - The Simpsons Wiki
When the Nuclear Inspectors Head Quarters got lots of weird messages from Springfield Nuclear Power Plant, they contacted Bauer. He managed to find out that no accident would happen because there was an automatic shutoff.
Bart Simpson accidentally connected to his cell phone while contacting the school base for the mission. Bart quickly turned it into a prank call. Bauer realised when Chloe O'Brian told him it is actually a prank. He later turned up at the school to find Bart and bursted into the school gym. He had abandoned all other missions to track Bart down, causing Shelbyville to explode behind him. Marge stuck him on the refrigerator with magnets when he tried to promote 24 while Marge was welcoming the viewers to the show.
He was seen at FOX's 25th Anniversary show.
 Behind the Laughter