Season 4
A school assignment to find out whose family founded and still owns the City sends Billy and Maddy across town on adventures with old friends and new faces. Ultimately, they not only learn about their City, but must save it!
Episodes
1 The Brawl in City Hall Oct 25, 2022 
2 Who is Ludmilla Ersatz? Oct 25, 2022 
3 Crisis on Moonbase: Momentous! Oct 25, 2022 
4 Wreckless Driving Oct 25, 2022 
5 A House Divided Oct 25, 2022 
6 The Trojan Slooshie Oct 25, 2022 
7 Born to Direct Oct 25, 2022 
8 The Wexler Deflector Conjecture Oct 25, 2022 
9 Billy to the Maxx Oct 25, 2022 
10 The Good, the Bad… and the Turtles Oct 25, 2022 
11 Day of the Dread Nov 22, 2022 
12 Mr. Produce Buys the Farm Nov 22, 2022 
13 This Land is Harl's Land Nov 22, 2022 
14 Shirley Overdrive Nov 22, 2022 
15 Yes, No, Maybe So? Nov 22, 2022 
16 Grizzled and Grizzled-er Nov 22, 2022 
17 Freya, Basically Nov 22, 2022 
18 Where in the World is Sheep Wheeler? Nov 22, 2022 
19 King Fendrich I Nov 22, 2022 
20 King Fendrich II Nov 22, 2022