The Snowman Cometh:
Courage, Muriel, and Eustace go on vacation to the North Pole. Courage goes out to get firewood and comes back to the igloo (where they were staying) and finds everybody else is gone. Courage knew it was a snowman because he saw it earlier. He figured out that the snowman was taking a liquid from Eustace and Muriel's body to be able to live in hot weather and not melt. Courage gets captured by the snowman but breaks out and saves both. The snowman falls into icy water while chasing them and freezes into a giant ice cube. Muriel, Courage, and Eustace go home.
The Precious, Wonderful, Adorable, Loveable Duckling:
Courage finds a duck egg, brings it inside, and gives it to Eustace. Eustace thinks he is going to eat it for breakfast, but finds out its still alive. It hatches and thinks Eustace is his mom. The duck becomes "Eustace's slave" and it's jealous of Muriel and Courage, which makes it do nasty tricks on both. Courage eventually puts a stop to this, in which the duck straps Muriel on a rocket headed for the moon. Muriel gets off it by the help of Courage, but the duck can't get off because his arm is trapped under the hood of the rocket. Eustace goes upstairs to help the duck, grabbing onto the rocket. Then, all of a sudden, the rocket takes off, heading towards the moon with Eustace and the duck on it.