What was the Second Dawn?
That was addressed on The 100 Season 4 Episode 8 when Jaha learned some shocking news about the group of people who could save mankind.
Meanwhile, Abby and Clarke questioned how far they were willing to go to use the nightblood to save the human race.
Also, Emory continued to cause problems when it became apparent she did not like the plan to use bone marrow.
Use the video above to watch The 100 online to get caught up with the latest developments for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.