The video shows a group of three people riding bikes down a dirt trail. The person in the front is wearing a black shirt and a black helmet, while the person in the middle is wearing a red shirt and a black helmet. The person in the back is wearing a black shirt and a black helmet. They are all riding mountain bikes and appear to be enjoying the ride. The trail is surrounded by trees and bushes, and the ground is covered in dirt and rocks. The riders are moving at a moderate pace, and there are no other people or objects visible in the video.