A new captain shakes things up at the East Miami Police Department, and Miami's young, hot-shot mayor gets personally involved when his promising young mentee is mysteriously murdered.

When Rosie and Villa discover that their murder victim has a death certificate from three years ago, they’re charged with uncovering the truth around his identity. As they struggle to solve the mystery around his death, as well as around Eddie’s, TMI tries to reconnect with Pippy and Donna finds it hard to keep a secret from her family.

The team is thrown for a loop when the mummified body of a notorious music producer is found on a yacht. Meanwhile, Rosewood is forced to deal with a shocking revelation about Tawnya.

Rosewood, Villa, Slade and Hornstock work to take down a highly skilled group of criminals suspected of a jewelry store heist, and Rosie decides that someone from the inner circle should run a new Magic City Lab on the west coast.