What did Lindsey think of her biological father?
That was a key question on Chicago PD Season 4 Episode 10 when she decided it was best to just meet him to find out what he had to say.
Meanwhile on this hit drama series, Voight welcomed a new member to the team, but what was their hidden agenda?
Also, Ruzek went on a solo mission that sent him deep undercover.
Use the video above to watch Chicago PD online to get caught up with the latest drama for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.