The complete fourth season of the popular US sci-fi drama series. Sam (Jared Padalecki) and Dean (Jenson Ackles) Winchester are two brothers who dedicate their lives to tracking down and destroying the evil forces that were responsible for the death of their mother. Episodes comprise: 'Lazarus Rising', 'Are You There God? It's Me Dean Winchester', 'In the Beginning', 'Metamorphosis', 'Monster Movie', 'Yellow Fever', 'It's the Great Pumpkin, Sam Winchester', 'Wishful Thinking', 'I Know What You Did Last Summer', 'Heaven and Hell', 'Family Remains', 'Criss Angel is a Douche Bag', 'After School Special', 'Sex and Violence', 'Death Takes a Holiday', 'On the Head of a Pin', 'It's a Terrible Life', 'The Monster at the End of This Book', 'Jump the Shark', 'The Rapture', 'When the Levee Breaks' and 'Lucifer Rising'.