Doc Zone시즌 2 이미지 추가에피소드 번호16The Battle of the BagOverviewIt's hard to imagine life in the 21st century without them. Plastic bags only got a handle on the mainstream about 25 years ago but in that time they have become ubiquitous, not only here in Canada but around the globe.Air dateJanuary 31, 2008Runtime (min)45