In the video, a golden retriever is seen wearing a blue vest with the words "duo service dog training" on it. The dog is being trained to perform various tasks, such as sitting and shaking hands with its trainer. The trainer is seen giving the dog commands and rewarding it with treats. The dog appears to be well-trained and obedient, following the trainer's instructions with ease. The setting appears to be a training facility, with a brick wall and a television in the background. The video captures the bond between the dog and its trainer, highlighting the importance of positive reinforcement in training service dogs.