1. Meet the Jennings

(“Pilot,” season 1, episode 1)

The pilot episode introduces all the major players — Philip, Elizabeth and their two children, Paige and Henry (Holly Taylor and Keidrich Sellati); FBI agent Stan Beeman (Emmerich) and his family; Nina (Annet Mahendru), Stan’s eventual lover who is at times a spy for the U.S. and also the Soviet Union; and Philip’s source inside the FBI, Martha (Alison Wright), with whom he is having a romantic relationship as part of the ruse. The “OMG” part? “OMG, this series is excellent!”