When Sheldon's suggestion on landing the rocket booster back is not taken seriously by a NASA scientist, he decides to pursue theoretical physics and works out the full details to prove his point.
While Mary, Memaw and Missy have their girls night at the salon, the three Cooper men plan their road trip to see the space launcher, but it doesn't go as well as they plan.
Sheldon makes friends with an upperclassmen learning a new field of science. Meanwhile, George Sr. and Mary have a disagreement on Sheldon's new social life.
While Sheldon is busy obsessing over the status of Meemaw's budding relationship with his mentor, Dr. Sturgis, George and Mary attempt to bond with their other kids.