Crashing Through the Snow (2021) on Netflix

Plot summary

In Austin, Maggie Collins and Jeff Randall split years ago but stayed close, raising Mia and Sophie together and sharing every Christmas. This year Jeff's girlfriend Kate Reynolds is taking the girls to Aspen for the holidays with her father Ted and stepmother Susan, and Maggie faces her first Christmas without them. Kate invites her along, and at the family estate Maggie finds Kate filling the days with scheduled activities and taking over the traditions the Collins-Randall household kept. Kate's brother Sam, a chef based in Tokyo, arrives unannounced and offers a trade: his help in winning back her place in her daughters' Christmas, in return for her design work on a business pitch involving a company that once belonged to the Reynolds family.