In this episode Mark talks about the 2009 American romantic comedy-drama film "500 Days of Summer" directed by Marc Webb from a screenplay by Scott Neustadter and Michael H. Weber. The story of the film, as told in a nonlinear narrative structure, revolves around the recollections and the memories of Tom Hansen (played by Joseph Gordon-Levitt), a trained architect who works as a writer at a greetings card company, of his relationship with Summer Finn (played by Zooey Deschanel), the new assistant to Tom's boss Vance (played by Clark Gregg). As depicted in the film, even from the moment that they meet one another, Tom and Summer's relationship seems to be one in which they enjoy doing the same things, they enjoy listening to the same music, and they enjoy every moment of the time that they spend with one another; however, over time, Tom and Summer's relationship starts to disintegrate - because, while Tom believes that they are a couple, Summer continuously refuses to put a label on their relationship, which ultimately leads to Summer and Tom to go their separate ways. Tom takes his break up with Summer incredibly hard, but with the help of Tom's half-sister Rachel (played by Chloƫ Grace Moretz), and Tom's friends McKenzie (played by Geoffrey Arend) and Paul (played by Mathew Gray Gubler), as well as with the harsh light of hindsight after Tom and Summer randomly run into one another again after some time has passed, both Tom and Summer come to the realisation that, as a result of their relationship with one another, even while they were apart, both of them found themselves reevaluating their belief on love, on fate - and ultimately they come to conclusion that though two people might always have been meant meet each other unfortunately not every couple is meant to stay in a relationship with one another, because sometimes people are fated to be with someone else who and when they may least expect to find the right person for them.