I'm glad you liked it! It's a pilot for a potential series, so I might be continuing it.

I didn't really go into too much detail in this chapter, as the story just started, but the reason he ran through time as soon as the intruders arrived is because he panicked, given he isn't exactly a warrior. This is hinted at near the end of this chapter, as he talks about hiring some mercenaries to eventually deal with the intruders and hopefully save his family.

Maybe I'm over-explaining some things I was going to talk about in later chapters anyways, but I will also say his family is okay, at least for now. He requested a quarantine of the time period, meaning no other time travelers can go to that area at that moment. So, he can make whatever preparations he needs to while remaining assured that no one else is going to interfere with the situation.