The video showed a line of fearless mice trying to get past the cat.
The idea has become firmly established in our minds that mice are very timid creatures. However, many situations and this video clearly indicate the opposite.
Judging by their size, this is a mother with her children, who have gathered in an even formation to overcome the potential danger in the form of a furry scoundrel. These little ones have so much fearlessness that they were not afraid to walk right under the cat. However, they were always vigilant, so because of the extraneous sound, they considered that a threat was approaching and immediately took off.