After a mission on Mars goes awry, stranded astronaut Mark Watney must figure out a way to contact the team of scientists back on Earth and the crew who abandoned him using only his wit, ingenuity and limited supplies.
Elaine, Jerry and George travel to India to attend the wedding of Elaine's bra-less friend. Elaine discovers she has slept with the groom and George learns that Jerry slept with his girlfriend, Nina. Meanwhile, Kramer tries to protect himself from a wish.
Sheldon and Amy host a Valentine's Day episode of 'Fun With Flags.' Elsewhere, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the comic store.
David is the only love Andria has ever known. His passionate love letters and voice messages have a way of making Andria stay. But having never met after 10 years, Andria needs to know what David is hiding that keeps him away.
Sydney and Ayissha were in an online romance for years before Sydney revealed she is not who she says. Even though she continues to lie about her identity, Aiyssha is still in love with Sydney, and seeks Nev and Maxs' help.
Hundra never planned on falling in love with a girl and now she is risking coming out on national TV to learn if her love with Emily is for real. Special guest Machine Gun Kelly teams with Nev to reveal a shocking Catfish.