We are trying to protect them when they are in danger.
We are 【_trying_】【our】【 best 】to protect them when they are in danger
We are 【_doing_】【our】【 best 】to protect them when they are in danger
竭尽全力做某事
We are 【_trying_】【all】【 out 】to protect them when they are in danger
try all out to do sth：全力以赴做某事