Podcast phenomenonSerialreturned for its second season in asurprise release Thursday morning.

But listeners can hear Bergdahls commentary in conversations with Boal, which will air throughout season 2.

Before you dive into season 2, heres what it’s crucial that you know about the case.

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Credit: Scott Olson/Getty Images

The way in which Bergdahl left his base in 2009 is disputed.

Bergdahl maintains that he left his platoon in Afghanistan so that raise awareness about the poor leadership he witnessed.

But after the Taliban released Bergdahl, many of his fellow soldiers called him a deserter.

Bergdahls fate is still unknown.

During a preliminary hearing in September,military officials didnt decideif Bergdahl would face jail time.

If convicted, he could face life in prison.

His release was deemed controversial almost immediately.

In exchange for Bergdahls release, President Barack Obama freed five members of the Taliban from Guantanamo Bay.

I think its a bad deal, and I dont like the precedent.

New episodes ofSerialwill be released Thursdays and can be heard onSerials websiteand podcast services, andon Pandora.