Complex sentence: Eventually, the US government was able to find and destroy the laboratory thanks to the mole (hinted to be Kyle Madigan) who tipped them off and Aya Brea managed rescue the young girl, adopting Eve and raising her as a sister.
Split into simpler sentences: Eventually, the US government was able to find and destroy the laboratory thanks to Kyle Madigan, who tipped them off. Aya managed to rescue the young girl, adopting her and raising her as a sister.