Horatio fights to save Yelina and when Delko goes against Calleigh’s plea and helps his dangerous father, his life is put in jeopardy.

When pirates take over a luxury yacht, Delko’s future as a CSI is threatened just as his relationship with Calleigh moves to the next level.

Jack baits Fayed with Gredenko, while the President faces a challenge to his office.

Jack enlists the help of an autistic man in the search for Gredenko, and Sandra Palmer makes a fateful decision.

CTU’s satellite tracking system is compromised as a bomb-carrying drone heads toward an unknown city. Meanwhile, US forces prepare for a nuclear retaliation on the Middle East.

The search for Gredenko finds Jack hunted inside the Russian Consulate and a former President calling on his ex-wife.

Jack’s search takes him to the Russian Consulate, while the Vice President contemplates a sweeping executive order.

Jack’s search takes him to the home of an old enemy, while a bomber slips into the White House.

While Jack looks for Gredenko and tries to save Josh, White House intrigue deepens.

Jack looks for a Russian national as his father plots with shadowy patriots. Meanwhile, the President and the Constitution may be in danger.

Red and the Task Force pay a visit to a former blacklister, as an explosive confrontation leads Liz to make a critical choice

Red sets the Task Force on the trail of a Blacklister with the tools to manipulate memories, causing Liz to question her own experiences. As Gale intensifies his investigation, Ressler…