Turning Los Angeles -- the land of traffic jams -- into an occupied city was no easy feat for the team on USA's upcoming sci-fi drama Colony.
A crew on the ground, a visual effects team in Denmark and an army of artists banded together to make the City of Angels into a City of Bicycles and Drones -- and the results are pretty impressive.
"The drones are sort of characters in their own right," explains visual effects supervisor Glenn Holbrook in the video below, which you're seeing first on Mashable. "They're essentially acting. They're in patrol mode, in seek and destroy mode, in modes where we don't know what they're thinking. ... They actually have different personalities."
In the behind-the-scenes videos above and below, members from the aforementioned teams and cast members like Sarah Wayne Callies and Josh Holloway open up about the challenges and triumphs of their grand-scale effort.
The videos are part of a longer behind the scenes featurette that will be available for viewing on USA Network's website starting Thursday.
The series, created by Lost executive producer Carlton Cuse and Ryan Condal, debuts on USA Network on Jan. 14, 2016.