The assassinations of Nazis, terrorists and Iranian nuclear scientists have given the Mossad a fearsome reputation that has come with a moral cost.

Switching between roles, Mossad operatives must juggle cover stories with their true identities back home, an often difficult balancing act.

The Mossad's covert ties to foreign governments have yielded results from Israel's peace treaty with Egypt to the disruption of Iran's nuclear program.

The Mossad's efforts to recruit intelligence assets behind enemy lines has led to complex relationships, some of which have ended tragically.