A magical fairy tale about a modern schoolboy Timka and his best friends - a girl Vetka, a boy Oska and a white dog named Boyka. Fleeing from the persecution of Moscow criminals, treasure hunters together with their parents came to Uzbekistan. There they found a map of King Parmenides, the ancient ruler of Bactria. Thanks to an unexpected find, the guys learned about a deep cave filled with gold to the very top. Alexander the Great hid the jewelry in the mountains. At that ancient time, he was on a military campaign in Indian lands.