Help! Sga/Sentinel Story

Hello looking for a Stargate Atlantis/ Sentinel Fic.

all i can remember is Sheppard is a sentinel and so is all his family they come to atlantis in season 1 when the wraith attack i believe but could be mixing that up i know its a McShep fic and i believe its John his dad and 2 brothers

All help appreciated

Thanks in advance

Linzi