‘Little Couple’ Preview: The Great Naptime Wars (Exclusive Video)

With Jen returning to work, it's Bill's first day alone with new son Will on the TLC reality series

Up until now on TLC's "The Little Couple," Jen Arnold and Bill Klein have handled new adopted son, Will, together. But, what happens once Jen must return to work?

It's the great naptime war as Bill discovers that even his boyish energy is no match for the fireball that is Will on Tuesday's new episode airing at 10/9c.

While Jen is away, Bill is treated to his first solo challenge: Getting Will to take a nap.

Also readTLC's 'Little Couple' Stars Address Double-Adoption Criticism (Exclusive Video)

In TheWrap's exclusive preview, the new dad learns that patience will be his greatest weapon as the minutes tick by while he gets the little tike to sleep.

Meanwhile, Jen must figure out how to balance her responsibilities and long hours at the hospital with the reality that she's a mom and needs to be home now more than ever.

Watch our exclusive sneak peek below: