The hashtag - Nobody messes with Rick Grimes (Andrew Lincoln) has been trending along with #TWDSeasonFinale and #rickmode on Twitter and why not "The Walking Dead" season 4, episode 16 features the brutal side of Rick.

Michonne (Danai Gurira), Carl Grimes (Chandler Riggs), and Rick Grimes were attacked by Joe's (Jeff Kober) group. The marauders were still seeking revenge for Lou's death.

Joe put a gun on Rick and his group nabbed Carl and Michonne. Just when Joe was about to kill Rick, Daryl Dixon (Norman Reedus) intervened and announced that Michonne, Carl and Rick are not bad people.

However, Daryl's attempt to save his on-screen BFF Rick went wrong when Joe's group went against him and beat him badly.

"First we're going to beat Daryl to death. Then we'll have the girl. Then the boy. Then we shoot you and then we'll be square," says Joe

Then, one of the marauders tries to rape Carl and this is when Rick loses his cool. Joe and Rick fight. Rick bites him (his teeth turn out to be his "surprising weapon"). Joe dies. Michonne shoots two from the group.

"He's mine," growls Rick to the man who holds the knife to Carl's neck. Rick stabs the man in the stomach and kills him brutally. All this happens in front of Carl and Michonne's eyes and they watch the new "Rick Grimes" in horror.

They killed all the five or six members of Joe's group.

Later, Carl and Michonne are seen in the car and there is blood on Rick's son's cheek. He sleeps in Michonne's lap.

Daryl hands over a cloth to Rick to wipe the blood off his face. They sit on the ground and talk. Daryl informs him about how he got out with Beth Greene (Emily Kinney).

Later, Michonne, Daryl, Carl and Rick arrive at the Terminus.