Season 1, Episode 2: When the fleet stops at the planet Carillon to refuel and pick up supplies, a newly-elected member of the Council seizes power from Commander Adama.
Season 1, Episode 23: Starbuck runs into his long-lost love, Aurora, who is involved with a group trying to free the electronics ship Celestra from its supposedly dictatorial captain.
Season 1, Episode 20: The exciting conclusion - When Apollo and Starbuck find a primitive sleeper ship carrying a man, a woman, and four children, speculation spreads in the fleet that the people are from Earth.
Season 1, Episode 1: When the Cylons trick the human fleet and destroy all its ships except the Battlestar Galactica, Commander Adama gathers up the remaining humans from the 12 colony worlds and leads them in search of the legendary 13th colony: Earth.