Balto III: Wings of Change

Balto III Wings of Change is a 2004 American straighttovideo sequel to Universal Studios 2002 animated film Balto II Wolf Quest, and the 1995 film Balto.

On the way, Balto meets up with Stella, who says that Boris was on the plane too. Stella is angry with Boris, but she is also missing Boris and admits that she was the one who chased him into the mailbag. With the help of Stella, and Muk and Luk, Balto locates the site of the crash, but not before encountering two angry moose. Boris is quickly found, and Stella and the polar bears head for home. Balto stays behind. He finds Duke whose leg is broken and tries to haul him back to Nome on a sheet of metal.But on the way back, an ice bridge that Balto is crossing breaks under his feet. Balto and Duke are about to fall into a canyon, but Kodi and his friends arrive just in time to save them both. The dogs help bring Duke back to Nome and Balto is praised as a hero, once again. Stella eventually forgives Boris, and Duke builds a new plane called Balto Flyer which Balto flies in with Duke. ........

Source: Wikipedia