On this week's NCIS ...

• A wanted assassin is killed by a speeding truck.
• 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.