Two Shallow Graves

The fate of the missing McStay family remains a mystery for three years until their bodies surface in two shallow graves in the desert. Prosecutors accuse Chase Merritt of the crime, and the trial begins with each side presenting their case.

A bombshell witness upends the Merritt murder trial, claiming someone else confessed to the McStay murders. Merritt's girlfriend gives him an alibi.

Police investigate other suspects, including a business associate taking money and an ex-boyfriend still in love with Summer McStay; footage of a truck leaving the McStay home may reveal the killer.

Merritt's phone pings close to the desert graves, and authorities speculate about whether he buried the bodies. Prosecutors suggest he tried to delete records to cover his tracks.

New DNA from the graves may reveal who murdered the McStays; the defence question Joseph's brother on his whereabouts; they can't locate the suspect they believe may have ties to the killings.

If Merritt testifies, the jurors will learn about his criminal past; the defence and prosecution present their final arguments with closing statements.