A documentary tracking the causes of the Sewol sinking. The netizen investigation team 'Jaro' announced it would be released at 4:16 PM on December 25, 2016. It re-analyzed, with experts, the factors the government claims caused the sinking, such as overloading, steering error, poor cargo lashing, and hull stability. On October 6, 2014, the prosecution revealed the causes of the Sewol sinking: overloading, steering error, poor cargo lashing, and deficient hull stability. If even one of these factors were insufficient, the accident would not have occurred. However, 'Sewol X' examines these claims, verifies the discrepancies between the government's announcement and the actual situation of the Sewol, and argues that the sinking of the Sewol cannot be attributed solely to internal factors.