Here we have the SPACE: 1999 THE COMPLETE SECOND SERIES blu-ray box set, released in 2015 by Network / ITV Studios. This features the second season of Gerry Anderson's cult 70s sci-fi classic across six discs, and includes a whole heap of extras. 

This appears to now be out of print - it is no longer available from the Network website, and is unavailable via Amazon (though they do sell the DVD version... for £75). 

All six discs are in great condition, as is the packaging. 

Some spiel:

eptember 13th, 1999...

A nuclear waste dump on the moon unexpectedly detonates, blasting the moon out of orbit and taking the inhabitants of Moonbase Alpha on a fantastic voyage of discovery to the stars, fraught with danger at every turn.

Long awaited, this second series Gerry Anderson's cult sci-fi series is presented here as a stunning High Definition restoration for the very first time. All 24 episodes, presented here in their original 1.33:1 aspect ratio with optional original mono or new 5.1 soundtracks, are featured alongside a wealth of special features, including:

[] Music-only tracks on all episodes
[] Unexposed: Behind the Scenes of Series Two - filming The Mark of Archanon
[] Stock Footage Archive: alternate takes and unused shots
[] Production Audio: original source recordings for material from four episodes
[] Cosmos: 1999: a stop-motion fan film from 1979
[] Martin Landau: in-depth interview from 1994
[] Archive Interviews with cast and crew
[] Seed of Destruction: the series two episode re-edited and re-scored as if it were made for series one
[] Outtake: a blooper featured in It'll Be All Right on the Night
[] Trailers and promos: contemporary promotional material for the UK and US
[] Behind the Scenes - Model Shop: footage taken during The AB Chrysalis - with Brian Johnson commentary
[] Clean series two titles
[] Image galleries of rare and previously unseen stills
[] Script and annual PDFs