In the video, a dog is seen standing next to a birthday cake with lit candles. The dog is wearing a blue ribbon around its neck and is being petted by a person. The cake is placed on a plate with the word "HAPPY" written on it. The dog appears to be sniffing the cake and the candles. The candles are in the shape of stars and are lit, with smoke rising from them. The dog seems to be curious about the cake and the candles.