The video shows a group of red ants crawling on a tree branch. The ants are moving in a line, with each ant following the one in front of it. The tree branch is brown and has a rough texture. The background is a clear blue sky with some green grass visible at the bottom of the frame. The ants are all similar in size and color, with a shiny exoskeleton. The video is shot during the daytime, and the lighting is bright and clear.