George is tired and needs to take a nap while at work; he finds the perfect place, under his desk. Kramer has taken up swimming, but he finds the pool too constricting for his needs; he begins swimming in the East River. Elaines date is worried about his back and hers; he sends her a mattress and she gets the wrong idea. She gives the mattress to Kramer. Jerry is getting new kitchen cabinets, but the contractor is constantly asking him questions. George gets Jerrys contractor to make some modifications for his desk, including space for an alarm clock. Steinbrenner is in Georges office looking for him; he decides to wait for George to return. George gets Jerry to phone in a bomb threat in an effort to get Steinbrenner out of his office. After finding George under the desk, Steinbrenner thinks he has ESP and would be perfect to meet the terrorists demand of a fitted hat day. Meanwhile, Jerrys contractor, left on his own, has made a change in Jerrys kitchen that no one likes. Elaine gets her mattress back when she gets the right idea; however, Kramer has fouled it up with the stench of the East River. Elaines boyfriend discovers the benefits of swimming in the East River. Steinbrenner hears a ticking sound in Georges office, thinks its a bomb and calls in the bomb squad. Jerry decides he needs his old kitchen back. Elaine throws her back out trying to get rid of the mattress. Kramers river gets crowded and George finds a new place to nap.