Over a 90-year span, the legendary Sierra #3 locomotive appeared in more than 100 movies and television productions, including the iconic Westerns The Virginian (1929), High Noon(1952) and Unforgiven (1992). In its heyday, the oil-burning locomotive crisscrossed the country delivering lumber, but it eventually fell into disrepair, gathering dust and rust in a California rail yard. THE SIERRA #3 LOCOMOTIVE: A STAR IS REBORN chronicles the restoration of one of the oldest operating steam locomotives in the United States and the passionate restorers committed to bringing it back to life. Experts detail the complexities of the restoration, which posed a variety of mechanical and engineering challenges for the crew of dedicated specialists, project managers, engineers and volunteers. With funding running out and technical issues to overcome, the team feverishly attempts to complete the project before the scheduled Fourth of July debut.