From the YouTube [video](https://www.youtube.com/watch?v=LniQBHja9bw) discovered in the previous challenge, visit the channels About page.
In the Links container, you will find a link to the site.
To find the flag, scroll down to the 3-image slideshow and open the second image. The computer screen will contain the flag:
`uiuctf{ch@pl1n_i5_eL337}`