Mark and Royal are back with a brand new shop and two old team members. The ghouls struggle to install the 383 in the 1970 Cuda and Mark checks in on the legendary Phantom Cuda at AMD.

Mark paints the burnt orange Hemi Charger, AMD delivers the Phantom Cuda, and the ghouls race to finish the Dailey’s 1970 Cuda 383. A restoration that is four years in the making.

The ghouls are wrapping up the 340 Cuda and installing panels on the Hemi Charger. Mark trains Allysa on O.E.M. assembly line markings and the team gets a visit from the legendary Christine.

The team struggles with after-market parts on their 400 Magnum engine. Allyssa gets out of the office and into the shop...sort of. The ghouls disassemble two incredibly rare Mopars, including a convertible worth over 7 figures.

The film crew follows Mark for the day and witnesses his addiction. The 1970 Sunroof Challenger returns and its condition is shocking. The ghouls start work on the 1970, Plum Crazy, 440, 6 pack, Challenger.

The entire restoration of the 1970 'Cuda 340 is revealed. Watch Mark and the Ghouls battle with the 340 engine, as every possible problem is encountered, and find out if someone sabotaged the engine.

The ghouls begin work on Bill Goldberg's '68 GTX, Mark repairs some bad body work on a Challenger decklid, and Will paints Brett Torino's '67 Hemi GTX. When Mark sets out to paint the 400 Magnum and Hemi engines, Will challenges him to a paint off.

Mark teaches Allysa to analyze and document cars in preparation for dis-assembly, but she later makes a crucial mistake. Also: the team install the 400 Magnum in the 1972 Dodge Charger.

Rare Mopars, a Daytona survivor, and Hemi Charger are featured.

The team completely restores the 1970 Plum Crazy 440 Dodge Challenger V-Code; looking at a side-by-side compairson of the vehicle against the 2014 Dodge Challenger.

Restoration on the burnt orange 1970 Dodge Charger R/T includes the tear-down, body work, paint, assembly-line markings, drive-train installation and the first firing of the vehicle's Hemi engine in over 33 years.

In the season 4 finale, witness the completion of the Burnt Orange 1970 Hemi Charger R/T. While Dave Rea races to finish its assembly, Mark prepares for his biggest and most public reveal yet.