Every season of Chromosome 21 ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Chromosome 21!

The police bring Tommy in for questioning, but he barely speaks. Investigator Mariana Enríquez takes on the case as drama unfolds with her ex-husband.

Tomy

Tommy misses his girlfriend Cristi as he struggles to adjust to his temporary new home. Mariana unexpectedly meets Bekam, Tommy's dangerous brother.

Search For Bekam

Mariana finds a creative way to get Tommy to talk, and ends up facing some of the trauma from her past. Another piece of the puzzle is found.

Happy Birthday

The police set up a crime scene reconstruction, but Bekam gets in the way. Mariana arrests an uncooperative suspect. Tommy makes a shocking revelation.

No One Is Innocent

The judge decides Tommy is able to answer for his actions. As Tommy awaits his fate, Mariana hunts down Bekam to uncover the truth about that night.

Something Stinks

Mariana discovers that someone on the  force has tampered with evidence as her custody battle hits a major bump. Bekam devises a plan to save Tommy.

The Enemy Is Near

Bekam sets his plan in motion, but Cristi gets in his way. The police chase the brothers, and Tommy and Cristi share a special moment.

The Escape

With Bekam dead, Mariana is pushed to let the case go but refuses, leading to a surprise turn of events.

You In The Mountains And Me In The Sea

When the police discover a man with Down syndrome hiding at a crime scene, they launch an investigation to determine whether he's a witness or a suspect.

The Best Seasons of Chromosome 21

The Best Seasons of Chromosome 21

Season 1