Bill and Jen discuss their children and the meaning of their smiles.

Jen meets with a physical therapist about improving her muscle strength and mobility.

To celebrate her 40th birthday Jen thinks the family is going to Galveston for a beach vacation , but Bill has a big surprise planned for his unsuspecting wife.

Bill talks about being a working Dad and how it's changed his life. He also talks about the obligation associated with adopting children.

Jen takes her mom and daughter with her to the spa for a pedicure before the vow ceremony.

Will has been able to feed an elephant and a giraffe in the past few months. Bill remembers the time they met the elephant in Mumbai.

Bill takes Jen to a secret place in the hotel to propose for the second time. She said yes!

Bill and Jen show off their silly side, but also they talk about the moment they met and fell in love.

Bill hangs Will's growth chart in his room and Will tries to be a good helper, but as a four year old boy, he is easily distracted.

When it comes to cutting the cake Jen takes the lead in directing the procedure. Watch The Little Couple Tuesday's 10/9c.

Jen talks about telling Will and Zoey that Mommy is sick with cancer. Will understood that Mom was not feeling well, but might not understand what cancer really means.

The Klein family enjoys a fun ride on the carousel.

It's Easter and while Jen is doing rounds at the Hospital, Bill is at home teaching Will and Zoey the art of dyeing Eggs.

Bill gives an open and honest answer to his feelings about Jen being diagnosed with cancer.

Watch the moment that Jen found out from her doctor that she has beat cancer. Her heavy treatment paid off and her prognosis is excellent.

Life in "The Little Couple" household has changed dramatically since returning from India with second child, Zoey.

Bill and Jen show off their silly side, but also they talk about the moment they met and fell in love.

Will and Zoey have a lemonade stand, but they are doing more drinking than selling.

Zoey celebrates her birthday at Georgetown Cupcakes.

The family heads out on a duck tour in DC.

Zoey goes to the doctor for a check up, and she might have a crush on him.

Bill takes Jen to a secret place in the hotel to propose for the second time. She said yes!

Bill, Jen, Will and Zoey and their grandparents feast at a local crab house.

The family tries space food. Who will like it the most?

Bill and Jen meet their surrogates at the hotel, and then it's all about finding the right ice-breaker. Shoot out at the Santa Monica Pier, anyone?

When it comes to cutting the cake Jen takes the lead in directing the procedure. Watch The Little Couple Tuesday's 10/9c.

The family is all together and ready to Trick or Treat for the first time.

Jen and Bill take Will and Zoey to the geneticist for a check-up.

Bill needs to get out and exercise, and a dog walk with Will and Zoey is just what the doctor ordered.

Jen and Bill take Will and Zoey to the orthopedic surgeon for a check-up.

The family enjoys a meal of sushi.

Will and Zoey meet Santa. Will it go over better than last year?