You're being redirected to a YouTube video that has been Rickrolled. The video is about a man who falls into a hole and then gets trapped by a giant octopus.
This is a classic example of a Rickroll, which is a prank where someone tricks another person into watching a video by using a URL that leads to a specific location.
If you are not expecting this, please be warned that this could be a prank or a malicious attempt. If you are being tricked, you should take precautions and avoid clicking on unknown links.