- Season 4 Episode 17
Null and Annoyed
DANNY TREJO RETURNS AS BREACHER; KEVIN SMITH DIRECTS
Barry (Grant Gustin) and Ralph (guest star Hartley Sawyer) take different approaches to finding the remaining bus metas before DeVoe gets to them. However, Ralph's cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, Breacher (guest star Danny Trejo) returns to ask Cisco (Carlos Valdes) for a favor.