When Sir Charles Baskerville is found dead in his country house, Dr James Mortimer asks Sherlock Holmes for help to save Sir Henry Baskerville, the only known heir, from the curse that haunts Baskerville family.

During World War II, earnest young Russian soldier Alyosha Skvortsov is rewarded with a short leave of absence for performing a heroic deed on the battlefield. Feeling homesick, he decides to visit his mother. Due to his kindhearted nature, however, Alyosha is repeatedly sidetracked by his efforts to help those he encounters, including a lovely girl named Shura. In his tour of a country devastated by war, he struggles to keep hope alive.