Fry arrives late for lunch with Leela on her birthday and promises to make it up to her by taking her to Cavern on the Green that evening. Before he can leave to meet her for their date, Farnsworth forces him and Bender to test his new time machine by sending it forward in time by one minute, so Fry decides to make a birthday video recording card apologizing to Leela for being late again. Unfortunately, Farnsworth accidentally sets the machine to send them into the year 10,000 AD, and the card is lost in the time vortex outside. Because their time machine can only travel into the future, Fry, Bender, and Farnsworth continue traveling through time until a backwards time machine is invented. Meanwhile, Leela assumes Fry stood her up again to go a robot strip club which is reported to have been destroyed in an accident, leading her to believe he is dead until she reads his card, which reappears in the year 3050. Realizing Fry did not mean to stand her up, Leela goes back to Cavern on the Green and leaves a message in stalagmites for Fry to find, reading how she cherished their time together. Fry finds the message in the year One Billion, when all life is extinct. With no hope of finding another time machine, Fry, Bender, and Farnsworth watch the end of the universe together, which leads to a second Big Bang after which all time repeats itself. The time machine returns to the point in time before it first left, crushing the new universe's Fry, Bender, and Farnsworth beneath it in the process and allowing Fry to reach his date with Leela on time.