Because there are a few different possibilities for what you are looking for, could you please clarify if you mean:
An episode of a long-running (e.g., "Lao Ba, Guai Bao Hui Jia La" / 老爸, 怪宝回家啦), which is known to have over 1400 episodes. Download Hui JiaKXSD EP1416 mp4
It sounds like you might be looking for a specific episode of a or a social media story . Because there are a few different possibilities for
A (like an Instagram or Facebook story) that you want to download as an mp4. Download Hui JiaKXSD EP1416 mp4