An Outta-Outta-Spaceous Adventure.
Get your nodz* around this!
Two zzziplas, one pair of twins, a blinding pink flash and then - ffzzzzzpwt! - goodbye Sally and Olly, hello Ally and Solly. Twins become sniwT. And only the Chykkans can fix-up the mix-up.
*Chykkanspeak for head.