Bill Klein and Jen Arnold are just like your average newlyweds -- except for the fact that they're both under 4 feet tall! "The Little Couple" is a new series for TLC that follows the couple as they embark on their new life together.

This past year has been a roller-coaster ride for Bill and Jen having experienced some of the best times in their lives and some of the most challenging. After two international adoptions and Jen's battle with cancer, the couple is now ready to focus their attention on raising 4-year old Will and 3-year old Zoey and the joys of parenting.

At the start of the new season, Jen returns to juggling motherhood and her career as a doctor at Texas Children's Hospital. She continues to be a champion for children's health care heading out to Washington, DC, to raise awareness for the Children's Hospital Association's Speak Now for Kids initiative. As a family, they move forward in acclimating Will and Zoey to life in the U.S. by working with the children on their language skills and enrolling them in pre-school. Bill and Jen make family time a priority doing lots of outdoor activities with the kids including gardening, beach time and swim lessons. And they share the joy of several family milestones including the children's baptisms, Bill's 40th birthday as well as Zoey's first birthday in the U.S.

After all the ups and downs of the past year, all Bill and Jen want is a calm and quiet year. But that is unlikely to happen, as medical challenges continue to emerge for the family. Jen is due for her six-month oncology check-up, the children need full medical evaluations and Bill is facing his own major medical issue that can impact the entire family. The Little Couple will face all of these challenges as they always do - together.