At this point in the series, Father Mulcahy has performed a tracheotomy under fire and twice risked his life to acquire badly needed drugs for the 4077th. Why he is repeatedly passed over for promotion remains a mystery.
Capt. Hill states he cannot fly with one wounded man without a counter-weight. Numerous past episodes have shown choppers carrying a single man without one.
'An eye for an eye and a tooth for a tooth' is the phrase that the title comes from.