The episode, entirely narrated by Socrates
, tells how he met Calvin and Hobbes.
It starts with his owners winning the lottery and moving into a mansion. He was pretty bored then, and spent most of his time watching DirecTV and planning pranks. One day, he decided to go outside, when he finds Calvin and Hobbes - he's more interested in the latter, being an anthropomorphic tiger like himself.
The two tigers find amusement in trolling Calvin, thus making him go insane. Hobbes tells him where to find their house, freaking out Calvin.
Later, when he arrives, Hobbes gives him a tour. Socrates takes pity on Calvin's father's outdated technology. Socrates decides to prank Calvin and build his trust by saving him at a point during his prank.
Unfortunately, he doesn't get to do it, as he's roped into a game of Calvinball
. He manages to earn the trust of Calvin, as well as Hobbes' friendship.
And Calvin eventually got in that rope trap, by the way. Socrates didn't save him, seeing how he'd already gotten his trust.