 Boys sneakily using a satellite see someone running away from a body- it s Lieutenant Commander Thomas Egan s. He was testing a hand-held sonar gun for divers, developed by the firm Side-Scan, with him as US Navy liaison. The body was found after an anonymous, screened call, which can still be traced with high-tech. The experimental gun is missing, Gibbs asks CIA Director Roper in vain but Abby s NASA-contact Ash finds the satellite and the exact control office, so analyst Jeremy Worth confesses he was just peeping at a nude sunbathing babe, which DiNozzo is eager to trace to a navy base gym. Furthermore, Egan s wife, a Lieutenant, probably knew Thomas had an affair...