When Sadie's (Malone Thomas) boyfriend cancels their holiday plans, she decides to spend Christmas with her parents back in her hometown, only to find out they've sold the family's beloved chocolate store to a stranger who knows nothing about chocolate. Begrudgingly, her father convinces her that she'd be the obvious choice to help teach the new owner everything she knows about chocolate. In the middle of planning the perfect retirement party for her parents, she discovers that not everything has to be perfect. And sometimes, when you least expect it, you find love.

In Host, Missouri, the newcomer Dr. of Veterinary Science Eli Rudkus is called by the farmer Jacob Long to exam one of his cows. The veterinarian finds a strange parasite in the animal and sends it to a friend in the Department of Agriculture for research. Later, he finds the same parasite in a creek and he summons the population for a meeting, warning that the cause might be the animal food. However, Fletcher Odermatt, the wealthy owner of the local Host Tender Meals that has been providing free animal food for the farmers, brings his lawyer Hayley Anderson and discredits Eli. When a huge mutant parasite attacks Eli and Jacob, they discover that the meals are actually an experimental genetic cocktail that is growing parasites inside the cattle and people. Written by Claudio Carvalho, Rio de Janeiro, Brazil