The season 5 premiere of The 100 confirmed that life has gone on for most of our favorite characters -- a few remain unaccounted for -- since the second nuclear holocaust. Viewers don't know all of the details of what transpired in the bunker, on the Ark or on the ground during the six-year time jump, but we do know that Bellamy is determined to get back to Earth and reunite with the other survivors. He's also in a relationship with Echo, who definitely looks more Skaikru than Azgeda after all those years in space. Bellamy will make finding Octavia a top priority, but what fans know and Bellamy doesn't is that it looks like things have taken a dark turn in the bunker (think Fight Club meets Mad Max Beyond Thunderdome), and his little sister may be even more lethal than she was when they parted. The siblings' differing leadership styles, and Bellamy's romance with Echo, are sure to cause friction when the Blakes come face to face.