CBS

Let's look back at the times when our TV heroes had each other's backs when it mattered most!

Tick off these fierce females and you might just get a knuckle sandwich - or, at the very least, a sharp-tongued retort. Watch and learn how to act like a lady who isn't afraid to kick butt.

Relive some of the best zings from Extant and your other favorite summer shows. This may sting a little, hope you still have some aloe.

Molly, JD, and Ethan are on the hunt for John's mysterious former colleague, who may hold the key to stopping the Humanich threat.