It’s 1941 in Paris – a family of scientists is on the brink of discovering a powerful serum of invincibility when all of a sudden a mysterious force abducts them, leaving their younger daughter, April, behind.

Ten years later, April leaves alone with her cat, Darwin, and continues her family’s research, but soon finds herself at the center of an obscure conspiracy.

Alongside Darwin and trusted friend Julius, April embarks on an adventure to find her parents and discover the truth behind their disappearance.