When Captain John Banks and his squad are sent to investigate a derelict Nazi base in Antarctica, he expects to find only ice and dead men. But there is something in the domed hangar bay that has been waiting for decades for release. A weapon was primed many years before. It had been meant to turn the tide of war. Now it stirs under the ice once more

The members of S-Squad are looking for a break from their run of cold climate travails. So when a seemingly simple mission in Amazonia comes their way, they are looking forward to some welcome warmth. What they get is oppresive heat, biting insects, and a dredging operation on the river with a snake problem. A big snake problem. Soon they are in a fight for survival. The old snake gods of the river know the waterways much better than our Scottish squaddies. Are their wits, and bonds of comradeship enough to see them through?

S-Squad are relieved to be home, and even an order to investigate animal mutilations at a local wildlife park does not seem like an onerous detail. But things take a turn to the twilight zone all too quickly around the S-Squad, and even their homeland is not immune. Something is feeding, ravenously, on animals, wildlife, and now people in the Scottish Highlands, and the trail leads to only one place, a place of legends, and the dark waters of Loch Ness

A trip to a war zone to rescue trapped archaeologists finds the S-Squad in a remote desert region of lost cities and temples. They quickly discover that they are not alone among the ruins. First they find the bodies, then they find the webs, then they’re in real trouble when the spiders attack. Big spiders. Lots of them

It’s supposed to be a simple sanitation job, a post war scientific base that needs cleansed of anything that might prove incriminating to British and Norwegian governments. But when the S-Squad try to complete their mission they are pursued in the mountains and fjords by something out of legend. They have woken a sleeping beast. Now it’s angry, ready for a fight. And it’s bringing its friends along

It’s supposed to be a routine job, walking a pair of stranded archaeologists out of the Gobi Desert. But when the rains come unexpectedly, S-Squad’s troubles are only starting. There is something in the sand, something red and wriggling. Thirsty for water. Hungry for flesh

A mission to the Congo starts badly for S-Squad and gets worse fast as they trace a team of captured WHO medics to a lost world in the interior. The Squad are isolated, split up, and face terrors long since thought extinct. Mokele-mbembe walks this jungle. And he is not alone

The chill grey waters of the North Sea off the Scottish coast are treacherous at the best of times and become even more so when something attacks an offshore oil rig. An old friend calls for S-Squad’s expertise but what they find is a bigger enemy by far than any they have previously encountered. This time they’re going to need bigger guns

Newly promoted Sergeant Wiggins doesn’t have any time for celebrations. The squad’s latest assignment takes then to the Canadian Yukon, into the middle of a winter storm and to a town overrun by ancient enemies of man, back now to wreak havoc in the snow

У новоиспеченного сержанта Bиггинса нет времени на празднества. Последнее задание отряда — отправиться на канадский Юкон, в самый разгар зимней бури, в город, захваченный древними врагами человека, которые теперь вернулись, чтобы сеять хаос среди снегa…

Earlier in the previous part: The team are sent into a remote area of the Libyan desert to rescue a team of researchers who have gone missing. When their search leads them to a lost city in a high desert canyon they find that they are also following in the footsteps of a previous Scottish squad, a team from the Victorian era. The city is overrun with an infestation and soon the squad are separated and under siege. Can they avoid the fate that befell their predecessors and find their way to safety?