Ben is still desperately searching for the mysterious Elle. Danny and Riley hunt for a good doctor to help with the pregnancy and Bonnie desperately wants to be involved.

Ben questions whether Tucker is dating a hooker, so he enlists Danny's help to find out the truth. Meanwhile, Bonnie and Brad prepare to set off on their trip around the world, but Brad is arrested by the FBI; and Riley agrees to defend Brad as his lawyer.

Ben believes he found a no-strings-attached hookup buddy, but Riley attempts to prove him wrong. Elsewhere, Danny winds up in a wrestling match after running into an old friend who is a professional wrestler and learns Bonnie might have a past with him.

Tucker learns the Mother's Day special he produced was nominated for a New York Entertainment Award. Tucker's mom surprises him by showing up to be his plus one to the ceremony, which throws a wrench in Tucker's plans to have Bonnie pose as his mom. Riley begins to show in her pregnancy and worries if this will hold her back from being promoted.

Sam comes back into the picture wanting to give her and Ben's relationship another chance, but Ben hesitates on whether or not that's a good idea as he's still searching for the mysterious Elle. Danny and Tucker volunteer for a charity ice skating show featuring Emma's favorite princess, while Riley practices parenting.

Danny is being overprotective of pregnant Riley, so Ben surprises Riley with a day off and a hike in the woods.

Ben gets jealous when he learns that Bonnie is sending Danny on a cruise to celebrate becoming a dad, so he and Danny hold a Wheeler War to see who deserves the trip more.

Danny and Riley go on their babymoon cruise, but Bonnie decides to tag along after Danny reveals that he hopes he and Riley will elope.

Riley wants to move because of apartment size so Danny tries to make it better with disastrous results. Tucker wants his old girlfriend Sondra back who's newly single but sends Ben in to be her rebound guy.

Danny and Ben are eager to find out the sex of the baby, even though Riley would prefer it to be a surprise.

Ben begins to feel like an insufficient parent when Emma's upcoming Mother-Daughter Talent Show leads Emma to ask questions about why she doesn't have a mother.