After Leela is ejected into space and nearly killed due to a ride malfunction during a package delivery run to Luna Park, Fry becomes worried that he may lose her again and decides to propose to her. Back at the Planet Express building, the Professor announces a pair of his latest inventions – a "time button" that allows the user to go back in time by ten seconds, in addition to similarly affecting everything currently happening around them throughout the entire universe, and a shelter that shields people from the device's effects. Fry steals and abuses the button to repeatedly steal candidate
diamonds for an
engagement ring with Bender's help. After presenting the ring to Leela, he invites her to meet him atop the Vampire State Building at 6:30 that evening if she agrees to
marry him, if not, he will infer rejection. He repeatedly uses the button to prolong the sunset, but she has not arrived by the time his watch reads 7:02. Heartbroken, he jumps off the roof in a
suicide attempt, but sees her approaching and notes that the building's clock reads 6:25; his watch had continued to run normally throughout all his usages of the button. He tries to undo the jump, but is unable to return to the rooftop since the device takes ten seconds to recharge between uses and he has been falling for longer than that time. As a result, he continually loops falling toward the ground from several feet below the roof, failing to get to safety. The Professor realizes that the time button has been stolen as he worries about the universe being in peril. He also warns that anyone leaving the shelter could be beyond reformation if the device is subsequently reused less than ten seconds later, After learning of Fry’s guilt in the device’s theft from Bender and using the shelter, the crew arrives at the Vampire State Building to save him. By this time, Fry is tired after falling for so long that he ends up letting go of the button. He instantly dies upon hitting the ground, but Leela picks up the button from Fry's splattered remains and uses it to undo the fatality. Emerging from the time shelter, the Professor tries to stop her and is seemingly vaporized when Leela presses the button. Following several failed attempts, Bender engineers a counter-strategy that involves an
airbag he contains. The plan succeeds and Fry is finally saved, only for him to inadvertently land on the button, destroying it and causing time throughout the universe for everyone and everything except Fry and Leela to come to a complete halt. With the world theirs alone, the couple conduct their
wedding themselves and spend what is, for them, decades romantically wandering the stationary world. A mysterious glimmer bothers them from time to time, but otherwise, they are satisfied. In old age, they return to the Vampire State Building to drink the
champagne that Fry had laid out there prior to the button's destruction. The glimmer finally reveals itself to be the Professor, who had actually been shifted into a different time frame instead of being killed. He has been trying to recover the time button all this time and, since Fry had kept it in spite of its current state, is able to repair it with a single modification – its next usage will return the entire universe to the point in time prior to its conception and wipe everyone's memories of all events since then. Despite having enjoyed growing old together, Fry and Leela both agree to relive their lives as the Professor presses the button. ==Reception==