S4E10 · Hands and Knees

Complete story — includes the ending

After SCDP lands a contract with North American Aviation, FBI agents visit the Francis home as part of the security clearance process. Betty lies to the agents to protect Don's secret, while Don panics over having signed the application form Megan filled out, unaware that it contained lies that could potentially compromise his identity. After consulting with a friend from the Department of Defense, Pete tells Don that ending the account with North American Aviation will end the investigation; Don orders Pete to kill the account, which Pete reluctantly does, even though it is worth $4 million. Joan finds out that she is pregnant with Roger's child; Roger helps her set up an abortion, but Joan insists that Roger not come since they should not be seen together. Lane's father is displeased when Lane expresses his feelings for a Playboy Bunny waitress, and demands his son return to London to reconcile with Rebecca. Lee Garner, Jr. tells Roger that Lucky Strike is planning to terminate its contract with SCDP, ending their 30-year history together; Roger begs Lee to give them 30 days before moving to get their affairs in order, and intends to hide the loss from the other partners.