Over the last few months, Greta Van Susteren has highlighted the plight of a former U.S. Marine who is being held in an Iranian prison. 

Sgt. Amir Hekmati, an Iranian-American with dual citizenship, was arrested while on a trip to Iran to see his ailing grandmother. Hekmati was accused of being an American spy and eventually was convicted on a lesser charge. He was sentenced to 10 years in prison.

Montel Williams went "On The Record" tonight to share that he is traveling to Europe with Hekmati's family to demand for his release.

"We're going to go over there to see if we can gain some international press and get some international human rights organizations to do what we don't what we don't seem to want to do in our own country," Williams explained. "We plan on being where ever the talks are to see if we can raise enough interest on an international footprint to get people to say unequivocally 'free Amir.'"

He called on viewers to donate to the Free Amir Hekmati Now Fund and to raise awareness about Amir's plight by using #FreeAmirNow on social media.

"What's really ... interesting is right now, this is 1,300 plus days," Williams stated. "Are we at a point now where can't we say enough is enough? I'm going to try to raise the ire internationally to get our boy home."

Watch the full video above.

You may also like...

Families of Americans Held in Iran: It's 'Crunch Time' to Bring Them Home

'It's Just Not Right': Scott Walker Wants Marine Jailed in Iran Released

Family of Marine Jailed in Iran: 'It's Time For Amir to Come Home'

Powerful New Audio: Marine Jailed in Iran Asks Congress for Help