Sam (Colin Firth) and Tusker (Stanley Tucici) have spent 20 years together. But in the two years since Tusker was diagnosed with early onset dementia, their lives have had to change. As Tusker’s condition progresses, Sam is forced to place his life on hold and become his partner’s full-time caregiver. Their time together has become the most important aspect of their lives and every moment they share has a weight it once did not. So, they plan a road trip while Tusker is still able to travel, to see friends and family and revisit memories from their long life together