When Kovac's (former series star Goran Visnjic) brother visits from Croatia, Abby feels crowded in her own home. Meanwhile, Gates starts to experience the pressure of fatherhood after Sarah (recurring guest star Chloe Greenfield) decides to have a sleepover with her friends. And Pratt becomes upset when a new temporary emergency room chief is named. Recurring guest star Kari Matchett (24) appears as Skye Wexler.
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