Ricky is accepted into a junior astronaut training program, but only if his siblings join him.

Cast: Lizzy Greene, Casey Simpson, Mace Coronel, Aidan Gallagher, Allison Munn, Brian Stepanek, Kyla-Drew, Maddison Hubbard, Savannah Hubbard, Ethan Kent, Gavin Kent, Shannon McKain, Londale Theus Jr.