From Russia to Iran: Crossing Wild Frontier (2017)

S2E16 The Runaway Caboose

Mary, Laura, and Carl, Mr. Edwards' adopted son, accompany Charles and Mr. Edwards to the train station. Curious, the trio explores an unattended caboose. Suddenly, the caboose jolts to life, rolling backward with increasing speed. To make matters worse, an oncoming train approaches from the opposite direction...