The Roses search for their missing son, David, while Alexis takes her relationship with Mutt to the next level despite technically being engaged to Ted.

Yusef tells us why not all foreigners are foreigners and his relationship with his cat. While Kareem talks about his grandfather and his uncle that believes that Tupac, Princess Diana and Biggie are still alive.

Pete introduces us to the crew as they drive down to Florida to hopefully perform a gig without any mishaps. The sudden appearance of an eccentric jeweller kicks off a surreal and possibly hallucinated series of events that make the show the least of their worries.

Alan starts to worry about a medical procedure that he is facing, and to get his mind off it, Charlie suggests they go to Las Vegas.

When Judith decides to take a vacation, the brothers have to take care of Jake during the week. When Alan finds out that he has to go to the I.R.S. because they're auditing him, he forces Charlie to take care of Jake, and Charlie doesn't do any better then Alan.

Alan lets Chelsea fix him up on a blind date with one of her friends, Rose.

Both Charlie and Alan face lifestyle changes when Chelsea moves into the house.

Charlie seeks to take advantage of Alan and Chelsea's budding friendship. Meanwhile, Alan takes up ventriloquy.

Frankie helps Sue get Justin Bieber concert tickets.

The kids have a "sit-down" with Frankie & Mike.

Sue yearns to celebrate her leap year birthday in a big way.

Sheldon creates a monster when he introduces Penny to online gaming.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Phoebe tries to get in touch with someone to warn them that Rachel's on the way to the wedding. Meanwhile, Ross and Emily's parents meet at the wedding rehearsal dinner.

In the aftermath of his Freudian slip, Ross tries to rescue his marriage with Emily. Meanwhile, Chandler and Monica try and find a moment alone in order to continue their affair while overseas.

Ross continues to try and mend his marriage to Emily. Chandler accidentally kisses Monica in front of everyone before leaving for work and Phoebe starts getting irritated by everyone's London stories.

Phoebe is rushed to hospital for the birth of her brother's triplets. While there, Joey winds up with severe sympathy pains that turn out to be kidney stones & Rachel tries to set Monica up on a date with a male nurse.

Alan lets Chelsea fix him up on a blind date with one of her friends, Rose.

Both Charlie and Alan face lifestyle changes when Chelsea moves into the house.

Charlie seeks to take advantage of Alan and Chelsea's budding friendship. Meanwhile, Alan takes up ventriloquy.

Frankie helps Sue get Justin Bieber concert tickets.

The kids have a "sit-down" with Frankie & Mike.

Sue yearns to celebrate her leap year birthday in a big way.

Sheldon creates a monster when he introduces Penny to online gaming.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Phoebe tries to get in touch with someone to warn them that Rachel's on the way to the wedding. Meanwhile, Ross and Emily's parents meet at the wedding rehearsal dinner.

In the aftermath of his Freudian slip, Ross tries to rescue his marriage with Emily. Meanwhile, Chandler and Monica try and find a moment alone in order to continue their affair while overseas.

Ross continues to try and mend his marriage to Emily. Chandler accidentally kisses Monica in front of everyone before leaving for work and Phoebe starts getting irritated by everyone's London stories.

Phoebe is rushed to hospital for the birth of her brother's triplets. While there, Joey winds up with severe sympathy pains that turn out to be kidney stones & Rachel tries to set Monica up on a date with a male nurse.

Mia's return finds Charlie questioning how devoted he is to Chelsea. Meanwhile, Alan tries to write a screenplay and the guys rush a labouring Judith to the hospital.

Charlie must make a difficult decision about his future as to which woman he wants to spend his life with, Chelsea or Mia. Meanwhile, Charlie also grows wary that Melissa has slowly moved into the house.

Girls rule the roost after Charlie consents to Chelsea's desire for Alan's girlfriend, Melissa, to move in with them.

Brick delivers newspapers for a veteran newsman.

Inspired by a church sermon, the Hecks search for a purpose.

Sue finds a kindred spirit in her awkward school guidance counselor.

Sheldon and the gang are confused when a young grad student is attracted to him.

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Joey lands a job with a PBS telethon, which ignites an old hatred Phoebe has towards the network. Meanwhile, Monica tries to convince Rachel that she's dating someone from work to hide her relationship with Chandler.

Monica and Chandler plan a romantic getaway to New Jersey in order to have an intimate weekend away from their friends. Meanwhile, Ross prepares himself to tell Rachel that he can't see her anymore.

Emily decides that the only way to continue her marriage with Ross is to have him get rid of all traces of Rachel in his apartment. Meanwhile, Rachel and Monica mistake a hairy neighbour for a yeti.

Chandler and Joey let Ross move in with them when his marriage to Emily falls apart. Phoebe gets involved with the local health inspector and Rachel becomes convinced that Danny is trying to seduce her with mind games.

Hollywood Executive Wendy Patterson returns to ‘save’ her struggling Irish hometown Drumbán… and to expose a decades-old secret she shares with Séamus Proctor, the local doctor.

After Charlie has back pain, Alan decides to take him to the hospital. Whilst there Charlie can't stop hitting on the doctor who is examining him. Berta is feed up with Jake's inability to use the bathroom properly, so she decides to make him clean it until he learns.

Charlie is invited to a party hosted by a gay ad-executive named Eric, so Charlie asks Alan to pretend that he's his life partner. While at the party, Charlie meets Eric's ex-wife Pamela and tries to sleep with her without Eric finding out.

Moira decides to cook dinner with the help of David. Johnny scopes out an office for his consulting business, and Alexis finally comes clean with Ted about their engagement.