Is it possible to copy an https websites entire website contents? Options

[PipeDiesel]

Hey all, new to the forum so hello. I want to copy a website's entire site so I can edit the html and upload it to my site. The site requires a login with user name and password. I pay a monthly fee for access to the site and I am allowed to download, use, edit, resell all of the videos on their site. They have around 550 short(5-10 seconds) MP4 vids I need to download, and I don't want to have to click on each video individually and click "show controls" and then click on the download button. Also, if there IS a way to copy their site contents and edit it, that would be great as I could skip the downloading individual videos and just make my site display the videos similarly to the way theirs does. Thanks in advance for any help.

-Chris