River and The Doctor had just had another prison breakout visit and The Doctor took her to Clum. Despite the name it was a very nice planet, and none of the people there were wearing skin suits, to The Doctor's relief. Then River heard very unusual sounds coming from the ground by the road sign. She said "DOCTOR! There's something under there! And it's coming up to say hi."
"Very clever River. I thought that was you." And all at once, The Doctor flew out of the blue sidewalk. "SWEETIE! WHAT THE HE** IS GOING ON HERE! WHY ARE THERE TWO!" and The Doctor 1 (real doctor) said "Gangers!" and shined the sonic screwdriver that way. "But how! They're all destroyed!"
Doctor 2 (Ganger) Said "Not all was destroyed. And I have some people who would like to see you. And I assure you, both of them are the originals."
Amy and Rory, both gagged and bound, appeared. Unconscious, they looked pitiful. "MUM! DAD!" River screamed. She immediately she pulled out a gun and shot the Ganger. "Where did that come from? You know I hate guns!"
And the Ganger exploded and all was well until Amy and Rory woke up.
Amy immediately hugged Rory and River/Melody and then turned on the Doctor. "Where am I and why the he** were we kidnapped!?" And the Doctor and River both replied in sync "It's a long story and we don't know half of it."