Politically, she tends to 'go against the tide' on her college campus. [=she tends to have different political opinions than most people on her college campus]
He became involved in social issues at the 'high tide' of the civil rights movement. [=at the most active and important time of the civil rights movement]
The team was on a losing streak, but then 'the tide turned' [=their luck changed] and they went on to win the championship.
(..) I'm nearly out. It's taken care of, babe. You and l will make a big score tonight. What is that? This should tide you over. Thanks. A big score? Maybe our biggest. Don't tell Mike. This is just between you and me. (..)1992 Twin Peaks: Fire Walk with Me