With the help of the police and RSPCA, Alison and Nic rescue Milly the Marmoset, who had suffered horrendous abuse at the hands of her former owner, a drug-dealer in South Wales.
It's March 2020, and a global pandemic is taking hold. Alison has little choice but to temporarily close the park to visitors in order to protect the vulnerable primates who can become infected with many of the same viruses as humans.