Underground: We'll Meet a Different Harriet Tubman in Season 2

When we last left WGN's acclaimed series Underground, the slaves known as the Macon 7 were running for their lives from a Georgia plantation and had been split up, fleeing in scattered directions.

In the series, Tubman -- the woman who helped thousands of people escape to freedom in real life and will soon appear on American $20s -- may be surprising for people as she comes to life.

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"Cato is very well, very rich and you've never met this Cato before," Miller says.