Leonard, Sheldon and Howard return to junior high school to talk to the girls about careers in science; Raj plans a big date with Lucy.

Monica and Chandler go to a fertility clinic to learn if they are capable of having a baby; Ross helps Joey find the words to say to a girl they both like.

Monica and Chandler interview unsuspecting male candidates to assist in their baby-making plans; Phoebe bumps into her ex-lover, David.

The gang heads to Barbados for a paleontology conference where Ross is the keynote speaker; David prepares to propose to Phoebe.

Both new couples decide to wait before proceeding with their relationships until the men can talk to each other; Ross walks in on Joey and Rachel kissing.

Ross and Joey talk about Rachel and Ross tries to live with the fact that they are now a couple; Frank Jr. tries to convince Phoebe to take one of the triplets.

Claire recruits the family's help to declutter their home; Cameron frets over Jay's dangerous new pastime activity; Mitchell teaches Gloria how to play golf.

Claire and Phil take on a new dynamic, as Claire runs the closet business and Phil remains behind the scenes, causing Phil to get fed up with being ignored.

When a huge thunderstorm knocks out the power all across town, the entire family gathers at Jay and Gloria's house to use their generator.

Calvin and Tina decide to take a late honeymoon to Madrid; Dave and Gemma work with Malcolm and Marty to surprise Calvin when he gets back.

After Tina forces him to find something to do with his retirement, Calvin decides to enter a cornhole tournament even though he's never played before.