The kids think it's Stillwater's birthday and plan a surprise party. Addy is disappointed about not getting a lead role in the school play.

With Addy home sick, Michael finds it difficult to enjoy a beach trip with Stillwater. A critter causes trouble in Addy and Maya's garden.

Karl faces his fear of crossing a creek in the woods. Michael sees that Addy looks sad and wants to cheer her up.

Karl is afraid to visit a barber for the first time. Michael becomes determined to make the perfect paper airplane.

Karl's excitement for Stillwater's return makes the wait that much harder. Addy takes on too many requests for the school's bake sale.

Leo deals with stage fright on a project he's presenting with Michael. Karl envies the attention Emma gets from the cast on her arm.

Michael feels overwhelmed by how long it'll take to build his dream treehouse. Karl copes with the loss of his favorite climbing tree.

Karl accidentally breaks a branch on Stillwater's cherry tree. The kids try to protect their sandcastle from being washed away.

While helping Stillwater make treats for the Winter Solstice Festival, the kids learn he plans to share some with a neighbor they're wary of.

Addy gets frustrated with Karl for not sharing a game. Karl receives a toy robot that isn't what he expected.

Karl gets upset when he reaches the end of his favorite book series. Addy sets an ambitious goal to get to the top of a climbing wall.

Michael is hired to pet-sit a neighbor's dog for the weekend. Things don't go as planned when the kids try to watch a lunar eclipse.

Michael feels abandoned on Halloween when Addy gets invited to a friend's party, and Karl decides to stay in because he's afraid of ghosts.

The arrival of Stillwater's niece Koo has Karl feeling a bit unseen. Addy puts on a show with her brothers but needs to learn to collaborate.

Karl and Koo think of ways to make their playdate last forever. Stillwater is anxious about everything he has to do before his trip.

Michael gives himself a hard time for missing the game-winning catch. Addy feels left out when she isn't invited to a birthday dinner.

Michael is nervous about meeting the new kids across the street. Koo attends her first birthday party and is concerned about her gift.

Karl is disappointed his gem museum doesn't attract more visitors. Addy's time with her classmates gets disrupted by Karl's antics.

Koo is caught off guard when Karl introduces her to his friends. Maya and Addy show Tommy kindness as he deals with the loss of a loved one.

Addy is offended when Michael doesn't like her poem. Michael buries his nose in a book during a group hike with Stillwater.

Michael, Molly, and Leo build Jasper a hideout, but he doesn't seem interested in it. Karl and Koo set off on a daring overnight adventure.

Addy and her friends unknowingly make Lexi feel left out at a sleepover. Michael's complaints put a damper on Molly and Leo's first snowfall.