Franco is a minor officer who is unexpectedly confronted by Lorenzo, a half-brother with a high IQ. Lorenzo helps him investigate an apparent suicide case in which there is something more.

Franco is overwhelmed in his first job with the homicide squad. Lorenzo suggests investigating the dead man since no one claimed his body.

The producer of a quiz show is murdered. Franco takes advantage of Lorenzo's erudition to enter the channel incognito.

A businessman is found dead in a pile of sand in the middle of a construction site, with a bullet in his back. Meanwhile, Lorenzo suffers rejection from the other kids in the neighborhood.

Franco is offered the position of deputy commissioner, which he accepts. At the same time, Lorenzo receives a scholarship in a program for brilliant minds that is being developed in France. Both will have to consider and deal with big changes, which could separate them.