After Po defeats Kai, he then marries to Tigress and both then live happily somewhere in the Valley of Peace in their own little house. Both still do some Kung Fu stuff but on knowing that Tigress is having a baby, Shifu asks tigress to have a rest until the baby is born.
During that time, Viper does the chores of their houses while also taking care of Tigress. With time, Po's excitement of becoming a dumping dad, increases as the days passes and finally the day becomes when the dumpling has to become the dad.
While Po is inside the delivery room and Tigress is going through pain, he tries to comfort her. Ping, Li, Shifu and Viper are waiting outside. A lady doctor in-charge of Tigress, tells a most tragic truth to Po that breaks his heart, shattering to pieces. She tells that the condition Tigress is going through, is very critical. Either the mother or the little daughter must be saved. One among them has to die and Po has to decide that.
On hearing such a thing, Po is shocked and suffers the physical trauma. He has no choice left. He is nothing but all mute. Tigress, while suffering through so much pain, holds Po's hand and says in her dying voice,"Po… save our child. I want to see her happy. Po, please… save her. I have spent my life. It's the time for our child now."
The panda, on hearing that, cries out,"No, Tigress! I want to save both of you! Please, don't leave me like this! There must be a way!" His face is wet with tears and so is that of Tigress but she has a gentle smile on her face as she says,"Po… please. Let our child… live."
"Ti! No! I want you to stay with me! You are hard-core, right?! You can go through this, right?! You'll have to go through this!" "We have no time!"
The female bunny says,"We have to hurry up! We've only one herbal drop to save one's life! If we don't hurry, both of them will die!" There's only one drop in the surgical needle hardly found in the whole valley. The herbal drop can save the life either that of child or that of mother.
Po, bursts out in tears again, confused in what to answer. Tigress, meanwhile, starts to lose consciousness, going soon to die along with here child. Stuck between two very difficult choices, Po is going through such a tragedy as he watches Tigress fainting. The sound echoes in his ears and he doesn't know what to do.
Suddenly, Tigress grabs the needle from the bunnies hand and injects it in her stomach, right into the body of the child. "Tigress! What did you do?!" Po cries and Tigress answers with a dying smile,"I saved our child, Po. It's my time to go. I love you, Po."
"No! No! No! NO! NO! NO!" Po repeats constantly as he watches the life of her beloved fading away. Tigress still murmurs in a very low voice,"I love you. I love y-" and she's gone forever, leaving Po with all of his sorrows alone. The grip of her hand looses and her hand falls down, indicating that she left Po forever.
After a while, Po comes out of the delivery room, having her little white and black stripped tigress baby in her hand while his face, wet with tears and his eyes, fully red and puffy, and the moment he comes out, he falls on his knees. This shocks everyone outside the room and at once, everyone rushes, gathering around him, asking,"Po, what happened?!"
"Tigress…" Po sniffles,"She's gone!" This shocks everyone too much, especially Shifu and Viper. as Shifu and Viper hears, they both rush at once to the room inside.
A moment of sheer happiness is changed to a sorrowful one, filled with tragic memories. Everyone, on knowing that fact, suffers in pain, both the Valley of Peace and the Panda Village are there at Tigress' funeral covered in white. The happiness turning so much into despair, it was unexpected. The days pass, the seasons change but the scars remain the same, filled with the same pain…
