In the Season Two Opener "What Lies Ahead", the survivors are heading towards Fort Benning when they are stopped by a massive pileup on the highway. As they work out various personal problems amongst one another a large herd of Walkers passes through the area. Rick, Lori, Shane, Dale and the rest are forced to keep quiet and hide quietly while the herd passes by. However, one of the herd shambles on board Dale's RV where Andrea is hidden quietly in the bathroom. Andrea makes a little too much noise and the RV Zombie eventually fights his way in. After a brief struggle, Andrea stabs the creature in the eye with a screwdriver, killing him.
The RV Screwdriver Walker is a highly detailed Halloween mask sculpted by Neal Kennemore, the Artist that sculpted a number of The Walking Dead Walkers for Universal Studios Halloween Horror Nights - The Walking Dead Maze, using hundreds of screen references, the RV Screwdriver Walker Mask looks like it came right off the screen of The Walking Dead.