Octonauts and the Walrus Pups

Plot:

Barnacles' nephews Ursa and Orso are going to get their Polar Scout Badges, when they spot three walrus pups on a drifting floe which is on a crash-course with 2 icebergs. The pups are lost and too hungry to swim. Will Captain Barnacles be able to save them and finally earn the Walrus Rescue Badge - the only one he hasn't got?