When a priceless painting is stolen in a museum heist, Morgan and Karadec team up with an art-recovery expert to unravel a tangled case and fierce ownership battle. Meanwhile, Soto is determined to uncover the secrets hidden inside Roman's backpack.

As Morgan and Karadec investigate the mysterious death of a hitman in a car crash, they uncover details that force the LAPD and FBI to partner on the case; Elliott tries to rekindle romance for his parents.