Eren wake up from a dream called the last day. And he saw in front of him Mikasa his step sister and Mikasa said "Why are you crying Eren?" and Eren said "Oh I was having a strange dream about my mom got eaten by a titan" and Mikasa was speechless.
(1hours later)
Eren and Mikasa was walking until they heard the bell in the tower and they rushed in the gate of the wall and they saw many people watching the survey corps retreat after they lost the battle and Eren was sad until they saw a wounded dog with a chainsaw in the forehead and Eren was shocked he thought that dog was an alien, and Mikasa said to Eren "Don't get to close on it cause it may be dangerous" and Eren was mad until there was a lightning strike outside the wall and they saw a huge hand and a giant face that covered in very hot steam and Covered with red in its skin until the titan breached the gate of the wall and sending rocks all over the city and Eren and Mikasa rushed home while seeing people crushed by the rocks and when they reach the house they were shocked! they saw a giant rock crushed there house and saw there mom crushed by the roof and Eren tried to get his mom out of the debris but until they saw a 13meters titan heading towards them in smiley face and Eren uncle was about to kill that titan until the titan faced to him and Eren uncle was shocked and his uncle run towards them to get Eren and Mikasa and Eren cried until his mom got eaten by the titan.