When she discovered that her big sister Morlha had joined G.H.E.I.S.T., Chloe initially tried to convince her to leave the secret organization but, faced with her sister's obstinacy, she decide to join Sentinel to prevent G.H.E.I.S.T. from achieving its ends. Shortly after she arrived she fell in love with Havok and since then they've been the most dangerous couple in town.
The members of Sentinel have one burning goal: to bring law and order back to the streets of Clint City! And if they have to set fire to the town and bathe it in blood to do so… then that’s exactly what they’ll do.