According to Liveleak.com, this video depicts:
Members of the Free Syrian Army hid[ing] explosives in a food can, to kill Syrian civilians and blame it on Assad.
The Syrian conflict has been marked by misinformation from both sides, however. In this video, for instance, President Obama urged the American people to view the intense brutality of the Assad regime saying:
Indeed, I'd ask every member of Congress and those of you watching at home tonight to view those videos of the attack, and then ask, what kind of world will we live in if the United States of America sees a dictator brazenly violate international law with poison gas and we choose to look the other way?
While the war has been marked by dangerous controversy from both sides, the latest news out of Syria is positive, with Assad handing over all of Syria's chemical weapons due to pressure from Russia.