When Howard and Bernadette decide they want to be married before his NASA launch, the gang rushes to put on a wedding, on the fifth season finale of THE BIG BANG THEORY.

NASA reschedules Howard’s mission, putting the wedding plans in jeopardy. Meanwhile, Leonard says something surprising to Penny in the bedroom.

Link #2 Bernadette reconsiders marrying Howard after learning about his sexual history.

Link #2 Link #3 When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.

Link #2 Link #3 Penny buys Leonard and Sheldon “Star Trek” collectibles as a thank-you, leading Sheldon to be haunted by Mr. Spock. Meanwhile, Raj decides he has met the “Future Mrs. Koothrappali” after his parents set him up on a date.

#2 Sheldon chooses to play video games with the guys rather than go with Amy to her aunt’s birthday party

Link #2 Sheldon’s life is turned upside-down after his barber gets sick. Meanwhile, astronaut training causes Wolowitz to rethink his decision to go into space.

link #2 When an office at the University opens up, Sheldon must compete for it with his archenemy, Kripke. Meanwhile, a gift from Amy makes Penny uncomfortable.

Sheldon works with Amy in the neurobiology lab after university tells him to take a vacation. In the meantime, Howard is worried over Bernadette suggesting they sign a prenuptial agreement.