Life is good for 16 year old Matt Marquez a top spy at SKAP (spy kids advanced program) along with his best friend Star Salgado , they deal with criminals , out laws and the occasional supernatural creature . But his world is flipped up side down when a group of police men bring in 2 teens dressed in black they look normal enough but SKAP detector say they aren't human but the detectors can't say what they are . They could be anything expect vampires , those went extinct about 15 years ago.........right ?