The main constituents of the set are a tanker truck, three aircraft and a hangar. Each of these gets its own instruction booklet and bags of elements. First up is the tanker truck (below) which at only four studs wide and less than ten studs in length reminds me of the 4-stud wide vehicles of my youth. This impression is reinforced by the inclusion of a couple of late 70’s-style 2 x 4 mudguards in the build.
Billund Airport (Danish: Billund Lufthavn) (IATA: BLL, ICAO: EKBI) is an airport in Denmark. Located 1 nautical mile (1.9 km; 1.2 mi) northeast[1] of Billund, it serves as one of the country's busiest air cargo centres, as well as a charter airline destination, although some regular airlines also offer flights there. Nearby Legoland Billund park is the largest tourist attraction in Denmark outside Copenhagen.

The remainder of the build is the control tower and terminal building. First there is a metal detector screener leading to the waiting/secure area of the airport, which seems taller than it needs to be for the minifigures. I think the same effect could have been made with half the height, except that would not allow for an impressive height for the overall tower. However it does seem to be similar to many modern airports with the high ceilings. This area also seems to be someplace to check luggage as evidenced by the rather nifty conveyor belt that comes in a full part. The moving parts of the set include a revolving door (a very tall one, for the first floor) that leads from the secure area of the airport out to the tarmac, and of course the conveyor belt.

The cockpit, including the stickers on the sides and the canopy, is identical to that of the first jet, as is the front of the aircraft. As previously noted, however, the wing configuration is different, as is the tail design which features twin tail fins and a pair of fuselage-mounted tailplanes. The red 4 x 1 x 3 tail fins, which have appeared in a total of seven sets including this one, are angled outwards similar to the arrangement on an F/A-18 Hornet. Overall, it’s another sleek design but once again the smooth lines are somewhat spoiled by the prominent canopy.
The construction of the new airport was carried out during 1964 and the airport opened on 1 November, with one runway at 1660 meters in length and 45 meters width, a small platform where aircraft could be served, and a control tower to the controller. Hans Erik Christensen, the former chief pilot at LEGO became director, and the passengers were handled in LEGO's hangar until the first terminal building was opened in the spring of 1966. The airport was continuously expanded the following years, with new facilities, terminal buildings, lounge, tax-free area and hangars where LC Johansen's studio often participated as an architect (today called the Johannsen Architects), while other work was carried out by the airport's own studio.
The body of the plane is built with five seats for passengers. The wings are added next with what I think are filler stickers added to the top of the wings. There is a small galley with sink and oven in the front of the plane right behind the cockpit. The cockpit uses only one sticker to show navigation equipment - the other is printed, which is always welcome (though not a new piece). A lavatory is installed in the back, and then the inside is complete. There is an odd choice for the door to the lav - a swinging door. Not much opportunity for privacy!
The build itself is good fun, as it should be, and engaging enough to be interesting. The only thing that I started to find a little boring was the Airport Control Tower, but then its top redeemed it. Naturally, the best thing to build is the Giant Man figure. The techniques used to make it posable, like a regular Lego minifigure, were brilliantly thought out. I hope to see more like this, perhaps in a Galactus set, although I doubt that’ll ever happen.
Agent 13 has a pretty plain appearance, with caramel-coloured wavy hair, and a black, spy-like top. Her torso has some nice details, with sharp, angular lines that all combine to form a rough outline of an upside down star. She has plain sand blue pants and rocks a sub-machine gun accessory. I like regular LEGO firearms, so it’s very nice to get one in this set as they’re fairly uncommon.