Thanks Mathew & Nathaniel! I've worked on the logline some more....the problem I have is: do I craft a logline for the series or for the pilot episode? For the pilot episode it would be:

In Nazi terrorized Holland a teenage student fails to protect her best friend, so when she finds four abandoned Jewish infants, she decides to smuggle them to hiding places outside Amsterdam. But how? And who can she trust? Based on a true story.

What do you think?