A new Transformers: Age of Extinction trailer preview has arrived in anticipation of the full-length payoff trailer debuting later tonight at 12:01 am PDT. Check out never-before-seen footage in this action-packed 17 seconds of pure, unadulterated awesomeness as the Decepticons descend upon a still recovering planet earth after the events depicted in 2011's Transformers: Dark of the Moon. See new robots and hear Mark Wahlberg scream in this tease of what will surely be one of the most amazing movies of the summer. It's truly a spectacular event.