Get That Out Of Your Mouth (You don't know where it's been!)

Spring break, really just a great opportunity to try for the- well, who really knows how many times- but to try and map out the Ghost Zone! Unfortunately for Danny, this little field trip of his has taken him much farther from home than expected.
In a place that is simultaneously very different, and very similar to his world, Danny Fenton is trapped in Metropolis, powers weak and his own self following after, he needs to either find a way home, or a new source of the ectoplasmic energy he's living off of.
Meanwhile, in the home team, Lex Luther's change of heart has everyone on high alert, especially as the lives of teenagers become pawns in a dangerous game of chess. Robin and Superboy, Superman and Red Robin, are all pressed to prevent such a catastrophe before it's too late.