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.

Family and friends celebrate WIll's birthday with chocolate and a giant cake!

Jen and Peyton record a song about the wonderful doctors who helped them through their cancer treatment.

The kids go sledding during their family vacation in Vermont.

Bill and Jen go out to dinner to discuss Jen's job offer and what it means for their future.

Will and Zoey visit the local aquarium and pet the animals.

The family runs through a fire drill.

You'll love these cute moments from the last season of Little Couple!

The family does arts and crafts together.

Jen and Bill discuss adoption topics with Martha, the owner of the adoption agency that placed Will with their family.

Part 1 of 2: Jen works with a young leukemia patient and the Purple Songs Can Fly organization to write a song about hope and recovery.

Part 2 of 2: Jen performs a song about hope and recovery with a young leukemia patient and the Purple Songs Can Fly organization.

Zoey and Will lend their hands to a few household chores.

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

Thanks to you, The Little Couple reached 1 million Facebook fans! Bill and Jen have a special thank you message for all the loyalty & support!

Get a sneak peek at the new season and find out more about Bill and Jen's new book!

Ready or not, here they come! Check out this sneak peek at the new season of The Little Couple!