Cat Valley Locomotive - a one-page RPG

Two great cities, mutually dependent on each other for crucial resources, are separated by an expansive mountain range. The only way through: a web of railway tracks which snake through the terrifyingly cute CAT VALLEY. 

Brave crews aboard these locomotives ensure goods get from one side to the other, scaring off the cats and repairing the train or re-railing it when it comes off.

Oh, and the cats are the size of jumbo jets.
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This is a one-page RPG, utilising nought but a deck of playing cards (including the jokers!) 

Players take on the role of train crew, trying to get their shipment from one city to the next through Cat Valley - where cats the size of nuclear submarines roam around, and think that the trains passing by are toys. Fend them off, keep the train running, try not to die of cuteness!