Fiona is awfully impressed by what she sees in this clip. It's a scene from the episode "Hard Out."
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Welcome to Burn Notice, Gavin Rossdale. As previewed here, the rocker guest stars on the episode "Hard Out."
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Burn Notice Season 5 Episode 8 Quotes

Jesse: There are still 5 guys with machine guns.
Michael: Better than 40.

Pearce: Anyone tell you that your brand of espionage is hell on the nerves?
Michael: All the time.