This is a Fry-Jacking
Explanation
The Joke
A person in a mask and costume stands on a bus (or airplane) holding a gun, dramatically announcing: "Attention everyone! This is a fry-jacking! Keep calm and no one will get herbed!" The caption below reads: "Burger King would like to apologize for getting too creative with our viral marketing campaign."
The Humor
The comic is a pun-based joke. "Fry-jacking" is a play on "hijacking," replacing "hi" with "fry" (as in French fries). Similarly, "herbed" replaces "hurt," substituting a cooking/food term. The absurdity comes from imagining a fast food chain's marketing campaign going so overboard that it involves staging a fake hijacking with food puns -- a scenario that is both terrifyingly inappropriate and hilariously corporate in its tone-deafness. The humor also plays on the trend of companies attempting edgy "viral marketing" stunts that spectacularly backfire. The corporate apology framing in the caption adds an extra layer, suggesting Burger King's PR team signed off on this before realizing it was a terrible idea.