Caliban is chopping wood for his master, Prospero, as a storm approaches. The loud thunder reminds Caliban of the hatred he has for his master.
As Caliban finishes chopping wood, he spots Trinculo, a jester from the shipwreck. Not knowing who he is, Caliban hides under his cloak thinking that Trinculo is an evil spirit that Prospero sent to torture him for being late with the firewood.
I must seek shelter from this terrible storm! What is that interesting creature over by the rock? Is it a fish or a man?
Because the storm is getting worse, Trinculo finds it necessary to take shelter under Caliban's cloak even though the idea of sharing a cloak with a monster seems unappealing.
Why is the evil spirit hiding under my cloak?
Not long after the storm ends, Stephano, another survivor of the shipwreck and butler to the King, comes along. He washed ashore on a wine barrel and is now drunk. Stephano spots Caliban and Trinculo lying on the ground.
Is that a two-headed monster with four legs?
Trinculo and Caliban come out from under the cloak and Stephano gives Caliban some of the wine that he has left. Caliban is reluctant to drink the wine at first because he is still convinced that the two men are evil spirits sent by Prospero. Also, Trinculo recognizes Stephano from the King's ship and they celebrate their reunion.
Caliban is now drunk from the wine and declares Stephano his new master. Caliban's disloyal and self-centered nature leads him to betray Prospero just as Prospero's brother, Alonso, did to him.