Graham Shiels

A hacker tries to interfere with the presidential election, causing chaos for Team Scorpion as they try to sort out the mess.

The team investigate a ransom case involving a marine's daughter during Halloween; Tony and McGee are stunned by Abby's costume.

The CBI team investigate the death of a documentary filmmaker. As they make links to an older murder case, Jane is taken hostage by the prime suspect.

Oliver is drugged and left for dead after a fight with Cyrus Gold, Felicity and Barry grow closer, and Brother Blood captures Roy.

Moira fights for her life in court, while Oliver tries to get to the bottom of a mysterious illness sweeping through the city.

Central City police scientist Barry Allan investigates a seemingly impossible robbery, while Sin turns to Roy for help when a friend goes missing.