Here’s the official synopsis from Pixar ICYMI:
Blindsided by a new generation of blazing-fast racers, the legendary Lightning McQueen (voice of Owen Wilson) is suddenly pushed out of the sport he loves. To get back in the game, he will need the help of an eager young race technician, Cruz Ramirez, with her own plan to win, plus inspiration from the late Fabulous Hudson Hornet and a few unexpected turns. Proving that #95 isn’t through yet will test the heart of a champion on Piston Cup Racing’s biggest stage!
Lightning McQueen is again voiced by actor Owen Wilson. Jackson Storm is voiced by actor Armie Hammer. We liked this recent Instagram post from Armie: