Endoscopic submucosal dissection (ESD) is a well-proven minimally invasive treatment for early gastrointestinal cancer, but its longer procedure time and risk of complications limits its practice. A major limitation of ESD is the lack of a “second hand” that can provide traction. Reliable tissue retraction exposes the submucosa and allows for safer and faster dissection. Current retraction methods are not always able to deliver retraction in the correct direction, or can interfere with scope movement. We have developed a retraction strip that provides retraction in the correct direction throughout the entire ESD procedure without interfering with scope movement. To assess the feasibility and efficiency of our prototype retraction strip we compared ESD with and without the retraction strip in a live porcine model. In our video, we demonstrate first a schematic of the retraction device followed by actual images. We describe how its engineering and design allow it to be easily deployed. We then present a roughly 2 minute video demonstrating retraction-assisted submucosal dissection. We go through the steps of hemoclip deployment followed by submucosal dissection. Ultimately, we provide the results of our live porcine model trial demonstrating the effectiveness of retraction-device assisted ESD. Finally, we offer our final conclusions: our video shows the feasibility and benefits of retraction strip assisted ESD in a live porcine model. Deployment of the device was successful in all cases (only one shown in the video) and it resulted in shorter and easier submucosal dissection. Further development of this technology is warranted. Watch the video: https://goo.gl/Cr8ZGT