American Dad! Episode 3.13 Red October Sky

Stan goes in search of a former KGB agent, Sergei, but he's shocked to find the man is his new next door neighbor. When Sergei starts helping Steve build a rocket for class, Stan realizes the boy has turned into a communist. Meanwhile, Roger and Klaus head to France for a little R&R but their trip takes a turn for the worse when Klaus gets busted for smuggling drugs back into the U.S.