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Mills tries to learn more from his father from Benny Severide. Which causes Boden great concern. Benny decides to not tell Mills the entire truth, but even the truth he does tell causes Mills to send punches flying.
Shay continues to look at sperm donors, but after coming across Mouch's profile Shay decides to ask Severide instead.
Heather joins Casey at his home for dinner and movie, but her attempts as something more are rebuked by Casey.