Michael and Sam come to the aid of a doctor in need on the episode "Neighborhood Watch." We love watching these two work together.
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Looks like Fiona is enjoying herself in this photo. It's taken from the Burn Notice episode "Neighborhood Watch."
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Burn Notice Season 4 Episode 5 Quotes

Fiona: Someone is getting a little flirty for his own good.
Michael: Fi, I am trying to snatch Kendra off the street and tie her to a chair.
Fiona: You're not helping your cause.
Michael: This is just a harmless case of cat and mouse between me and a professional killer.

Sam: Thought I would introduce myself to the head honcho.
Fiona: How did that go?
Sam: Worst surveillance ever.