Having another episode dig deep into Callen’s undercover background is great because that’s probably the most intriguing aspect of this show. It’s also probably the best role that Chris O’Donnell has ever had, and that’s now something I think anyone expected. Seeing him slip so easily back into his old cover and deal with a former friend of his, even if he was undercover when they new each other, get shot and killed right in front of him was quite powerful.
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