Pratt and Dr. Brenner (recurring guest star David Lyons - Sea Patrol) get off to a rocky start when Brenner refuses to teach the interns. Gates treats a young transplant patient with major heart trouble. Abby contemplates telling Kovac (former series star Goran Visnkic) the truth about her affair as she heads for Croatia. And Sam finds out that Gates and Julia (recurring guest star Reiko Aylesworth) have broken up.
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