Very short Nuke script working!

Fuse = script.Parent

function onTouched(hit)
Fuse.Smoke.Enabled = true
wait(5)
explosion = Instance.new("Explosion")
explosion.BlastRadius = 20
explosion.BlastPressure = 100
explosion.Position = script.Parent.Position
explosion.Parent = game.Workspace
script.Parent.Parent:remove()
connection:disconnect()
end

connection = Fuse.Touched:connect(onTouched)