In last Sunday's Game of Thrones episode titled The Laws Of God and Men, Tyrion was on trial for crimes against the throne - namely regicide. Cersei blamed her brother whole-heartedly for the death of her tyrannical son, King Joffrey. The audience knows that Tyrion didn't do it, but he's still in the hot seat - with his iron-fisted father Tywin presiding as judge. When his lover-whore Shae betrayed him on the witness stand, he demanded a trial by combat.
But this was no trial at all. It was lesson in theatricality. Tyrion knews he was on trial for his true crime - being a dwarf in a culture that prizes anything but. That is a trial he can never win, so Peter Dinklage played the imp ferociously:
"I saved you. I saved this city and all of your worthless lives. I should've let Stannis kill you all... I'm guilty of being a dwarf. I've been on trial for that my entire life. I did not kill Joffrey, but I wish that I had... There is no justice here. Let the gods decide my fate. I demand a trial by combat."
In other parts of this world, a thoroughly brainwashed Theon pled for mercy from his torturer Ramsey Snow, for simply being present when his sister Yara tries to rescue him. Daenerys had the slave masters of Meereen, the new city she rules, crucified. She also found the tediousness of rulership not to her liking.
And now for next Sunday's episode, Mockingbird's official synopsis:
"Tyrion is going to enlist an unlikely ally. Daario (Michiel Huisman) will entreat Dany to allow him to do what he does best. Jon's warnings about the Wall's vulnerability are going to fall on deaf ears. Brienne (Gwendoline Christie) is going to follow a new lead on the road with Pod (Daniel Portman)."
(Mockingbird is a reference to the personal sigil of Lord Petyr Baelish where a dispatched Sansa is now held),
Tune in next Sunday, May 18 to HBO at 9 for Mockingbird.