In the video, a group of people are playing a game of bike polo on a tennis court. They are riding their bikes and hitting a ball with a mallet. The players are wearing helmets and gloves for safety. The court is surrounded by a fence and there are buildings in the background. The players are moving quickly and trying to score points by hitting the ball into the opposing team's goal. The game seems to be intense and competitive, with the players showing great skill and agility on their bikes.