A drama packed mission flying six tigers from the Netherlands to South Africa is hardly off the ground before there's a medical emergency; and the challenges of treating lions with medical problems.

International animal rescue organization FOUR PAWS goes on a dangerous mission into the Gaza Strip to rescue two lion cubs. But tricky negotiations with the lions' owner, red tape and suspicions create chaos for the team.

Locked in small cages and used as attractions at small private zoos and even local restaurants, the future of 15 Kosovo bears is bleak if animal rescue organization FOUR PAWS doesn't take action; and a team go to Romania's Danube Delta to rescue Europe's last wild horses from the slaughterhouse.

We follow FOUR PAWS' efforts to give captive lions a better life. A family of five lions who suffered a harsh life in a Romanian zoo, are given a new home, and a new lease on life; and we take a look at a shocking, yet legal industry and that is threatening South Africa's lions.

Animals at a struggling zoo in Gaza are in desperate need of aid. Left devastated by war, Khan Younis Zoo was dubbed the 'worst zoo in the world.' In 2014 Khan Younis Zoo boasted 44 animals now only 15 remain. FOUR PAWS must rapidly swing into action to relocate the remaining animals and find new homes for them.

LIONSROCK is an Animal Welfare Project by FOUR PAWS, a big cat sanctuary situated in the heart of South Africa. It's a place where rescued big cats can live with dignity, safe and protected for the rest of their lives.