Transformers 4 Age of Extinction - New Details on Movie Preview From CinemaCon SPOILERS

Optimus - driving through the desert, spaceships flying through a city, a massive car chase, and a shot of Stanley Tucci freaking out about being forced to hide in a big glass room
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Cade and Tessa are rescued when Shane (Jack Raynor) pulls up in his car. As they race away, it’s revealed to Cade that Shane is Tessa’s boyfriend – which is news that Cade is not very happy to hear.
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The next sequence began with Optimus Prime doing battle with Galvatron on an open stretch of road, with Cade, Tessa and Shane at their feet trying not to get squashed by the giant robots. It’s revealed that Galvatron is actually a remote-controlled Transformer (being manipulated from a control room by Stanley Tucci’s character and a random guy) who was presumably created so that humans would have a weapon against a future alien invasion. While Cade and Shane are able to get to safety, Tessa gets caught in the middle of the fray and can’t escape, eventually hiding in a parked car.
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Lockdown’s face turns into an absolutely massive gun and Optimus is once again hit by a blast, this time knocking him on top of the car Tessa is in. As the new threats come closer, Lockdown gets back into the ship a tiny vehicle comes flying off of the big one, throwing down a net that captures both Optimus Prime and the car he is lying on. Cade sprints towards the ship and leaps to grab the netting, trying to free his daughter. His attempts are in vain, however, as he is unable to hold on and the aliens fly away. In frustration, Cade slams his fist on the ground in slow motion.

The footage ended with another giant montage featuring all kinds of various action, including more explosive car chases, the main characters swinging down the side of a skyscraper on power lines, and Cade and Savoy having an epic chase across rooftops. The footage ended with a giant piece of alien machinery flying into a busy intersection and crushing a car. Cade exits the giant hunk of metal, and the driver of the car he crushed comes out to complain, saying, "I hope you have insurance." Cade reacts violently to this, and calls to his daughter: "Tessa, hand me my alien gun."