This is what ClockwerkSamurai12 and I wrote
Marshall: Psst. Chase, Chase! Wake up, wake up, wake up.
Chase: Huh? Marshall, what is it?
Marshall: I want to play!
Chase: Not right now, it's 4 o clock in the morning.
Marshall: But the sky's awake, so I'm awake. So we have to play.
Chase: We'll play tomorrow. Right now, go back to sleep Marshall.
Marshall: Hmmm...(gasps and opens Chase's eye) Do you want to build a snowman?
Chase and Marshall run to the backyard of the lookout.
Marshall: Come on, come on, come on!
(Both of them laughed)
Marshall: Do the magic, Chase! Do the magic!
(Chase uses his frost powers to make snow. Marshall stares at it in awe.)
Marshall: (whispering) Yeah.
Marshall: This is awesome! (laughing)
Chase: (laughing) Watch this. (stomps and ice forms on the grass)
(Marshall slips on the icy grass and they make a snow man puppy.
Chase: (finishes the snow man puppy) Hi, I'm Snow Pup. And I like warm hugs.
Marshall: I love you, Snow Pup! (hugs Snow Pup and they laugh while they skate on the frozen grass with Chase blowing icy wind to speed up)
(Marshall and Chase slide on a snow pile)
Marshall: Haha! Whee!
Chase: Hang on! (makes another snow pile)
(Marshall jumps from that pile)
Marshall: Haha! Catch me!
Chase: Alright. (He uses his frost powers to make stepping stones for Marshall) Gotcha!
Chase: (gasps) Marshall wait! You're going too fast! Slow down!
(Chase slips on the ice grass)
(Marshall keeps on jumping and then falls)
Marshall: Whoa oh no!
(Chase strikes Marshall in the head)
Chase: (gasps) Marshall! Oh no, Marshall!
(Marshall's spot turns baby blue)
(Chase sees the blue spot and starts crying)
Chase: Ryder! Pups, help!
(Chase's ice magic goes out of control and the trees and grass becomes frozen solid as Chase grieves for Marshall)
Chase: (sobbing) It's okay Marshall. I've got you...
Ryder: Chase, what have you done?!
Zuma: This is totally getting out of hand, dude!
Chase: It was an accident! I'm sorry Marshall...
Rubble: Oh no! Marshall!
Skye: He's ice cold!
Ryder: I know where we have to go!
Next part Frozen/Script (Part 2)