Talk:Blood Must Have Blood (Part 2)/@comment-4554525-20150312054901/@comment-25900245-20150312081720

They're 30 miles (ish, don't make me go look this up) away. No way to get there in time.

Although, fair point, Clarke had no idea the whole thing would play out in, what, an hour, two, maybe three at max. The first thing you do when a plan goes pear shaped is call for backup...

I'm going with "because story". The 100 can rely on nobody but themselves to save them, and that's what they did.