Baywatch - Season 11 Episode 12
The Ex-Files

Sean deals with a series of prank phone calls for non-existent rescues and discover that McKennas son is one of those responsible in which Jenna uses this to try to heat up the war between McKenna and Sean into a lawsuit hoping McKenna will finally close down the Baywatch Training Center. Zack deals with a slight hearing loss in one of the rescues while dealing with Jenna trying to get his help to bring down McKenna, while Zack is showing around Peggy, a prospective new trainee.