Crossbeak, Bonnet and Bone, a family of three Grey Whales, are trapped beneath the ice with no means of escape.
In order to survive they must have air and they can find no breaks in the ice through which they can breathe.
Bone, the little one, cannot hold his breath as long as his parents and is rapidly becoming weaker and more frightened. As panic begins to set in they discover two small holes in the ice and are just able to reach them and gulp down the life giving air.
Can they find their way to the open sea? Will Bone be strong enough to survive?
Help comes from an unexpected source. But will it be enough to save them?