View Post Agencies | Brands | Campaigns Firehouse Helms Simple, Effective ‘Forest’ Spot for Interstate Batteries By Erik Oster on Jan. 22, 2014 - 5:15 PM Dallas-based agency Firehouse created this simple, yet clever and effective spot for Interstate Batteries. The 30 second “Forest” depicts an overgrown forest swallowing up a long-abandoned ’52 Ford Mainline with ...