In the wake of his brother's murder, Michael Westen has created his own stages of grief.

They will be evident on tonight's "Unchained" and are depicted in the following sneak peeks at the episode. First: insomnia...

Next: threatening an FBI agent for information with a brandished gun...

From there: bargaining, acceptance and deal-making...

Finally: plotting, scheming and file recovery...

Tune in to Burn Notice tonight at 9/8c on USA and then visit TV Fanatic soon afterward for our detailed review.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.