When Covid-19 had its first case, the world took it lightly. 30 years later the virus has evolved and wiped out 80% of the population as the deadliest virus ever seen. Mavis, a 16 year old girl surviving with her mom and two little sisters Lilith and Sage, has to leave due to the rising sea level claiming another home. The family is back on the road trying to stay together and stay alive.