So similar to the challenge in the last post...yet so different!

This one is very similar to the predicament in the last post, at least from the inital appearance. Yet it's also very different.

What's going on here? What kind of predicament challenge was this sub in, and how does he get himself out of it? Oh...and what elements were added to make it a bit more of a challenge for him? Take a look at the photo clip clues, then let us know what you think in the comments below.