Season 4, Episode 11 Making Angels
First Aired: February 3, 2012
Astrid gets a surprise visit from her counterpart in the alternate universe; Peter and Olivia are on the trail of a killer equipped with a toxic weapon that defies chronological description.
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- Premiered: September 9, 2008
- Rating: TV-14
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- Premise: The passengers aboard Flight627 have died under mysterious circumstances. As FBI begins investigations, they soon realise that this was only the beginning of a greater calamity. (more)