What if Amblimation was still open?/Rise of the Guardians: Apprentices/Prelude (episode)

Plot
After they successfully defeated Pitch Black twice, Jack Frost and Bunnymund are a little troubled when they left their favorite kids behind. North tells them the good news that they are getting apprentices. He explains that even though they don't have time for children, the Man in the Moon wishes them to have a bond with a child of their choosing. Jack worries about the side effects of this and wonders about what Jamie will have to go through in order to become an apprentice.

North explains that a child will begin to manifest the same powers of the guardian that they are bonded to. Since Jack is bonded to Jamie, the boy will start feeling immune to the cold, whether it is harsh or mild. A tattoo of a snowflake will emerge somewhere on his body. Same thing goes to Sophie when she is bonded with Bunny. She will feel the need to go outside more, than being cooped up in the house all day. She will also be more quicker and protective of nature.

Jack and Bunnymund are intrigued by this and say to North that they probably won't need them until the seasons are right for them. However, Tooth tells them that they had to split their attention from one kid to the next in order to protect them.

Sandy chooses Cupcake as his guardian apprentice. Even before the battle with Pitch happened, Sandy was spoiling the girl with his dreams. Caleb and Claude are chosen by Jack as North's guardian apprentices while Pippa and Monty are chosen by Bunnymund as Tooth's guardian apprentices. At first, they were very skeptical of this, but soon admit that the four children were beginning to grow on them.

Jack Frost wonders how long it takes for them to transform when all of a sudden, a stabbing pain takes over the Guardians one-by-one. Before the shadows crash down on them, Jack Frost sees that that the guardians successfully got the glowing colors on their apprentice's beliefs before they take over. The energy of the Guardians was being sucked out by the shadow of Pitch Black who is able to possess the bodies and make them do inexplicable things that will bring about the dark ages once again.

North tells the shadow that if he gets rid of the wonder, hope, dreams, memories, and fun, the world will plunge into chaos, but it defends the criticism by saying that he won't be bringing the fear, at least not by his accord.

Before they could succumb to the shadows, Jack Frost pressed his hand on top of Jamie's light to send some of his power to the boy, the blue light glowed bright as he couldn't fight back against the shadows anymore. Pitch's shadow could see that the globe was showing seven glowing lights that the guardians had bestowed their power on and even though he is imprisoned for a while, it sneered at the glowing marks on the globe and decides to have a little fun in toying with the children before he ends their belief.