StillwaterSeason 22022 · 7 episodesEpisodes1The Visit / ShowtimeThe 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.2Karl's Museum / The HelperKarl is disappointed his gem museum doesn't attract more visitors. Addy's time with her classmates gets disrupted by Karl's antics.3Band Aid / The Good MorningAddy forms a band with her friends and discovers playing together is harder than she expected. Michael's day gets off to a rough start.4Building Big / Falling LeavesMichael feels overwhelmed by how long it'll take to build his dream treehouse. Karl copes with the loss of his favorite climbing tree.5Stitch Marks / Friends ForeverKarl is upset that MuMu, his favorite stuffed toy, is “broken.” Addy feels betrayed when her best friend spends time with someone else.6Hide and Seek / The TripKarl and Koo think of ways to make their playdate last forever. Stillwater is anxious about everything he has to do before his trip.7One Drop Makes an OceanStillwater shows the kids his worm farm and other things he does to live green, which inspires them to come up with more ways to help Earth.Season 1Season 3Season 4Season 5