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.

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

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

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