This concept is the most abstract of the 3, and centers around a combination of strong performance shots and dance numbers.
The video opens with The Hearsay walking onto a vibrantly lit, white cyc environment. They pick up their instruments, count off the beats, and groove right into "Warning Signs." As they play, groups of people start "magically" popping on screen in clumps of 4-5 people, until the entire foreground of the shot is filled with people. Everyone starts grooving and dancing, filled with excitement and really flowing with the syncopations of the rhythm. But then, as the pre-verse breakdown slows down and glides into verse 1, the groups of people "magically" disappear, until it's just the band performing again.
This conceit of the crowd popping on and off the screen continues throughout the video, as the general A-setup for the video. Intercut throughout is group performance footage, where each individual dance group performs a unique choreographed dance routine to the song. The camera tracks through their performances, shooting at a really high FPS (60-120) to capture the frenetic excitement of their performances.
Ultimately, these performances and group shots would propel the video forward, crescendoing into one big, everyone-all-together-now dance number during the final chorus of the song. As the song's denouement trails off, everyone cheers, hugs each other, and generally goes ape shit as a final jib shot takes us up above the entire crowd.
Additionally, supplementary abstract shots would be interspersed throughout the video to underscore the backbeat and rhythmic patterns of the track: