![](https://image.tmdb.org/t/p/w342/b15WOmTfgjltU78tTPlQ94zE10e.jpg)
Astrophysics lecturer Neil Tannahill receives an enigmatic note from Dr. Spencer Quist, former head of Doomwatch, and finds himself drawn into a sinister conspiracy involving Soviet nuclear waste secretly stored at a British nuclear facility.
![](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
Other episodes for this season
![Fire and Brimstone](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![High Mountain](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Say Knife Fat Man](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Waiting for a Knighthood](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Without the Bomb](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Hair Trigger](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Deadly Dangerous Tomorrow](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Enquiry](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Flood](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Cause of Death](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![The Killer Dolphins](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Sex and Violence](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)
![Winter Angel](https://image.tmdb.org/t/p/w300/sIebbt0d7mVtpzjjUR1qVlRiuIQ.jpg)