Jenna is marching around the Training Center with Phil Price, a photographer getting publicity shots of her in action. Meanwhile, Zack is showing around Peggy, one of the trainees. They get a frantic call: a scuba tour group has lost some of its members near a reef. Seeing an opportunity for some photos in action, Jenna grabs Phil and directs Sean to bring him with them so he can get the shots. Zack will ride shotgun with Jenna. As they near the area the call came from, Sean notices that the channel marker is missing. He warns Jenna and Zack, but they are too intent on the rescue. The jet ski hits a reef and flips, tossing Jenna and Zack into the water. Zack breaks his ear drum, but suffers through the pain in order to get Jenna, who is trapped under the water. He and Sean rescue her. It turns out that there never was a group of scuba divers: it was just another in an increasing series of pranks that have been played on the lifeguards. McKenna attempts to use what happened to Zack and (thetvdb.com)