An Australian bloke and his ward stumble upon a teleport gate that leaves them in the middle of a secret US government experiment in alien technology. Probably should only bother mentioning if it is non-secret I suppose, given that the opposite is pretty much the default. :)
The kid is brain-impaired, a condition which leaves him useful in a 'work out the alien technology and become possible doomsday weapon and alter balance of world power' sense.
It all gets quite a bit weirder from there, as the secret snake alien and dead people history of the world is uncovered.
3.5 out of 5