Obtain the cattle of the monster Geryon.

Geryon was a big giant, who lived on the island of Erytheia. Monster had several lion paws and dragon wings.

Heracles must take his cattle to Eurystheus. Zeus's son killed two-headed dog Orthrus and herdsman Eurytion. Hero shot Geryon with one arrow.

Eurystheus received the cattle from Heracles.

So, Zeus's son did his tenth labour.