In which episode of Braveheart 2, Dr. Dong died?

Plot introduction:

The child drowned in the dungeon in the east village. He has seen death beckoning to him. At this time, the harsh telephone rang, and Matsushima demanded the release of Tong Jiaru in the East Village. Dong was tied up in the East Village in a rage, but he couldn't get any news from Dong.

Dongcun asked his men to carry the child out. When they saw the tortured child, everyone had mixed feelings. Dong took him to the east village in front of everyone. He publicly announced Dong's true identity as a doctor and an underground worker, and now he must be executed on the spot.

When Dong was killed, he witnessed the murder of his beloved woman. He tried to control the burst of tears, and his colleagues in Chongqing held his arm tightly to prevent him from revealing his identity. Gardenia is frightened, and the baby will be born soon. Everyone protected the injured child and Gardenia to go home.