In part 4 from 2012 which is sadly the final show in the WCHRL series, the first layout shows the collection of John Mueller, which he holds the world record for collecting 1100 locomotives and 6000 coaches and freight cars. This segment was narrated by Jeff McComas. The layout itself measured 35 by 40 feet. An interview with John is included. He's been collecting for 50 years. The trains on John's layout includes a pair of Norfolk southern dash 8s, the Metra commuter train, the western Pacific version of the California zephyr, union Pacific big boy 4018, A rock island units and a grand trunk Gp38 on an auto train, A pair of Indiana harbor belt NW2s, an MTH CSX C30-7, the Pennsylvania mountain class 4-8-2, A Chicago and northwestern freight led by heritage unit 1995, and a regular C&NW unit, A West side lumber company shay number 10, A soo line alco, the CB&Q version of the California Zephyr, A Santa Fe 0-6-0 with a slopeback tender, A Wisconsin central NW2, A pair of Illinois central gulf alco RS3s, the Milwaukee road ABBA, the Santa Fe F3, and lots of steamers at the roundhouse and turntable. For track, John uses gargraves track, with switches by Ross and curtis. The accessories on the layout includes the 164 log loader, the union Pacific mijack crane, random bridges both custom and store bought such as the 313 bascule bridge painted black, oil pumpers, the 464 sawmill, the 97 coal loader, the 497 coal loader, the 456 coal ramp, the 840 powerhouse, and various trees. John also has a small carnival, and an airfield. For power, 5 275 watt ZW transformers power the loops, while the other transformers operate the intermodal yard. Besides the layout room itself, John's trains are also on display in the exercise room, the workshop, and also in his garage. John's favorite trains were a prewar 225E freight set from 1940, the C&NW F9s, and sitting on the chimney is The 100th anniversary good hudson with a caboose. One of John's sons are working for The Norfolk southern as engines 7131 and 5522 are on a local.

The second layout in part 4 is a revisit to Norm Charbonneau, which is narrated by Joe Stachler. Norm's new layout as well as the bonus weathering techniques were also in TM's first blu-ray: the train layouts of Norm charbonneau. On this DVD, still images of Norm's new layout was shown as a bonus. Photos of the construction are included. The trains on Norm's New layout contains a Pennsylvania centipede, A Pennsylvania consolidation, A Pennsylvania decapod, A K-4 pacific, A pennsy Mikado, and other road names. All the trains on norm's New layout are operated by Lionel's TMCC and Legacy command control systems. A mention of Lionel nation part 2 is heard. You won't believe how realistic the buildings, the scenery, and of course the engines and rolling stock are. The L shaped layout is 19 by 22 feet. Norm still uses The roundhouse and turntable. Here 2-10-4 6496 takes a spin and enters The shed. All the tracks on norm's layout are 100% atlas. A map of the new layout is shown. The signals are from right of way industries. The L1 Mikado is from weaver, as well as the H9. The centipede is from MTH. You won't believe how much smoke it fills in the train room. All of the buildings are scratched built. The coal tower is based from the real thing in Durand Michigan.

The third and final layout for part 4 is the misty mountain railroad located in blairsville Georgia. Tom McComas does the narration. This layout was also shown in OGR publishing's Great layout adventures volume 3. Charles Griffiths great grandfather was a general for The civil war. His stepson Ken kluth was born in 1960 and died in 2010. The trains on the gigantic layout itself includes, the legacy SP daylight number 4436, A southern mikado, Lionel's model of the Milwaukee road Hiawatha from 2006, the southern E units, A trolley, A subway system, A rio Grande Mikado, A model of hillcrest lumber company climax number 10 which the real engine itself is still operating at the mount rainier scenic railroad in Elbe Washington, the rock island, the Texas special, the general, and much more. The layout is 3800 square feet. There are more than 16 bridges and 15 tunnels. You won't believe how many buildings are on the really big layout. There are also stations, trees, A carnival, department 56 buildings, mountains, and a special scratched built lift bridge. It's 7 feet high with a 6 foot span, which is powered by a motor and a bicycle chain. On this layout, there is a recreation of the Disney film: the great locomotive chase. Charles watched The whole movie 1000 times. The track is by gargraves. The power is 7 MTH Z-4000 transformers. 20,000 rock castings were installed. There is also a coca cola plant, McDonald's, A carnival, A circus, and a Christmas field. Plus there is a model of the state capitol, the 1903 terminal station, and Tallulah gorge. We mentioned by Charles, Georgia wouldn't be Georgia without one of the longest movies ever made: gone with the wind. There is also A model of MLK junior. Charles' first train was an American flyer version of the Hiawatha. You won't believe how much scenery there is on the layout. The backdrops are designed by Jim Fleming. He painted the Atlanta cyclorama for example. Nearly touching the ceiling is a model of a tower that is on top of brasstown bald. On a clear day you can see 4 states: tennessee, Georgia, and the Carolinas. Some of the skyscrapers were scratched built. The house at grandma Jones is around the entire quarry with something subliminal on the top. There are also crossings, A radar tower, and tons of other accessories. The arch bridge is at 7 feet tall.

Additional remarks by Steamboy:
Narration: Just enough.
Would kids enjoy this? Yes.
Image quality: Excellent!
DVD Value: Excellent Value!
Recommend to others? Yes.