That consolidating makes for a handful of callbacks and retcons, the most interesting of which brings us back nearly 20 years to Mission: Impossible III. Spoilers ahead for Mission: Impossible — The Final Reckoning. Throughout Mission: Impossible III, theories about the Rabbit’s Foot abound. Even better, it retroactively makes Mission: Impossible III — one of the saga’s most polarizing installments — all the more important in the grand scheme. Mission: Impossible — The Final Reckoning is now playing in theaters.