It's been a while, but here goes a #The100Season5 theory: Second Dawn / Bunker/ Wonkru logo in Becca's lab. If you look closely throughout S4 in the lab, the rocket & the satellite, you will see the infinity symbol, Polaris brand & this logo (photo 1), which is more than likely #SecondDawn. Can't wait to see how the writers tie it all together. Anybody have theories on the back story before the 1st apocalypse? Did #BillCadogen have something to do with it? Did he unleash #Alie? Did he already know Becca? Did Cadogen have a #GodComplex & believe he could fix the world #toomanypeople by destroying it & rebuilding it? I believe he created The 12 Clans after discovering Becca's #Nightblood serum worked. You needed that sermon to survive the radiation #jusdreinjusdaun. He took control of: started the conclave. But what became of #BeccaPramheda? Did he put her in a #cryosleep? Is Bill also in a cryosleep? There appears to be a vault door in the bunker that has the symbols on it. You can see it briefly behind Octavia & Indra & Bellamy inside The Commander's office in S4. It's clear in the recent S5 countdown photos of Tasya. I hope we get to find out. It has to come full circle. Note: I do not believe that was Becca with Raven in the lab. I believe it was ALie. Keep in mind, we don't know what has transpired with Abby underground and we sure as hell haven't seen or heard a lot about her. Eliza said we are going to be shocked about Abby.