Madelman 2050 was a toy line made in Spain between 1988 and 1989.
COTA astronauts from the Earth were the only line od defense against the evil Zarkons, reptil humanoids from a distant planet called Zarkonia who get problems when it sun begun to apart from the planet and became cooler for the reptils.
Zarkons initiate an invasion plan to land on the Earth.
They use the volcanoes and have great phisical strength.
A 3rd series was planned for 1990, but the company EXIN was bankrupted and the line, unfortunately, was totally discontinued for ever.
Is relatively easy to find the whole 1st series in the spanish Ebay and other spanish vintage selling sites.
The second series was only released in part, beeing really hard to locate some of the items for 1989.