Falling in love is tricky for teens Juliette and Calliope: One’s a vampire, the other’s a vampire hunter — and both are ready to make their first kill.

A former Marine out to punish the criminals responsible for his family’s murder finds himself ensnared in a military conspiracy.

Years after an alien invasion nearly extinguished the human race, three soldiers who survived on a secret moon base are sent to Earth to liberate the survivors from the Sentinel…