Danny finds his world being threatened when his estranged father shows up Leopard's Den with a secret which could blow the whole family apart. Du Plessis is upset after the lions in his care end up with a potentially killer virus.
Danny has a difficult decision to make on his first day as state vet when an investigation into an animal-smuggling ring ends up leading him close to home. Thabo settles into life at Leopard's Den, but the arrival of his older brother causes problems.
Danny watches over an animal translocation for his first huge project as state vet. Alice finds it hard running the clinic with him away and has a close encounter with lions. Du Plessis' efforts to show Caroline the `real Africa' doesn't go to plan when he takes her on a camping trip in the wild.
After some strange events occur at Leopard's Den, Danny and Alice need to work fast to solve the mystery before more animals die. Du Plessis jumps to the wrong conclusion after discovering a pregnancy test kit.
Danny investigates after the routine transportation of a tiger goes wrong and he finds out that Alice could be to blame for the animal's death. Du Plessis is forced to resort to desperate measures to save his home when the mining company says that it is going to buy Leopard's Den.
Danny realises he could have to sacrifice his principles to save Leopard's Den as the court case comes closer. Caroline ends up taking matters into her own hands when she goes undercover at the mining company.
When the family make one last stand to stop the mining company from destroying Leopard's Den it ends in tragedy. Danny thinks about returning to the United Kingdom until he can find a new home. After Du Plessis finds out that rhino poachers are working in the area, he comes up with a way to persuade Danny not to leave.