A Family with Children In which episode did Mary take her children on a trip?

This is the 50th episode of "Family with Children", the first series of "Temptation".

Episode 49: Xia Donghai’s script made a foreign cultural company decide to invest, and the foreign boss wanted to visit Xia’s house. Liu Mei and the children actively prepared to welcome it. The foreign boss gave gifts to everyone in the Xia family in advance, and the whole family was very excited. Unexpectedly, the boss turned out to be Xia Donghai's ex-wife Mary. Mary greeted and commented on everyone calmly, asked to take away a child, and listed the material temptations for each person. Later, the family unanimously decided not to accept Mary's gift and not allow her to destroy the Xia family's happiness. Mary was disappointed and shocked by everyone's rejection.

Episode 50: Xia Yu and Xia Xue said that they would not leave their beloved Xia Donghai and his wife. They said that since Mary was rich, they would not refuse to enjoy it. The Donghai couple were happy but also confused. Xia Xue said that because she watched videos about childbirth and childbirth, she felt that her mother was great, so she forgave Mary.