Deadly Weapon (1989)

Storyline:

Deadly Weapon 1989 An expermintal gun powered by an atomic reactor is misplaced when the transport carrying it crashes into a river The weapon soon falls into the hands of a bullied teen named Zeke, who uses it to get even with his persecutors An army team led by the overzealous Lt Dalton is sent to recover the weapon before its unstable reactor overloads and causes a meltdown