Missing

La langue originale est anglais.

"Ryan has disappeared, and Cal's suspicions are raised when he receives a cryptic message: 90 days. Cal agrees to work as an undercover agent for SI-6 to discover the whereabouts of his twin. But at an island getaway for troubled teens, Cal quickly discovers things are not as they seem. With secret hide-outs, underground training camps, dangerous clues and treacherous terrain, Cal has to face his ...