3 Review(s)

Bright siblings-and amateur inventors-Nick and Tesla Holt are back in this fourth instalment. With the mystery of the spy's identity solved, the kids face a whole new crop of questions about their parents' mysterious disappearance. To unravel the mystery, they'll have to come up with all-new cyborg gadgets together with their zany scientist Uncle Newt and their friends Silas and DeMarco.