Fast X's Shocking Ending And Post-Credits Scene Explained

gamespot.com:

Fast X was planned as the end of the main Fast & Furious series, and then that ending became a two-parter, and now Fast X has potentially ballooned into a trilogy. That evolving plan clearly had a big impact on Fast X's own conclusion, or lack thereof--it ends on a couple enormous cliffhangers.

Warning: This article will be filled with major spoilers for Fast X.

Fast X is split into four main storylines for all but the first five minutes or so. Dom goes to Brazil to figure out what the deal is with new baddie Dante. Letty (Michelle Rodriguez) is locked in a blacksite prison and has to team up with Cipher (Charlize Theron) to escape. Jakob (John Cena) goes on a road trip with Dom's son Brian. Roman, Tej, Han and Ramsay (Tyrese Gibson, Ludacris, Sung Kang and Nathalie Emmanuel) spin their wheels while they wait for the movie to have some purpose for them to exist. Or to not exist?

By the time the credits roll on Fast X, Jakob and Little Brian manage to meet up with Dom. Through a series of fun action movie contrivances, Little Brian ends up in Dante's car, and Jakob sacrifices himself (and his «cannon car» that's loaded with explosive ordinance) to clear out a bunch of enemies so Dom can make a move on Dante. Dom catches up to him, and Little Brian leaps from Dante's car to Dom's while the two do donuts around each other in the middle of a highway in an impossibly dramatic feat that no one could have anticipated. Dom and Little Brian drive off into the sunset.

Or so it seems, until about 30 seconds later, when Dante traps them on a dam and claims that this, actually, was his real plan. It's at this exact moment that Roman, Tej, Han and Ramsay fly over the dam in a jet for reasons that aren't clear--and Dante has Ames,