The team IDs Lt. Commander Geoffrey Brett as his target but does not know why
Ziva is assigned to protect Brett while the team tracked down accountant Drew Turner, who wired money to George Kaplan, who paid the hit man $25,000. Then Turner ends up dead.
Brett was receiving kickbacks from a shipbuilder in exchange for supplying government contracts. He was hiding the money under George Kaplan ... who she laundered money through and put the hit out on Brett.
Abby discovers that she shares almost the same DNA of another when they both come up as kidney donor matches (she wants to donate just because).
This person turns out to be an older brother she never knew she had. Abby test her mother’s hair and learns she was adopted.