Danger Mouse (2015)

'Danger Mouse' is a British animated series which ran from 2015 to 2019. A revival of the original 1981 cartoon, Danger Mouse (1981), the series continues the adventures of the eponymous secret agent and his bumbling sidekick Penfold while tackling the villainy of nemesis Baron Greenback.

S1E2: Danger at C Level
Danger Mouse and Penfold go on holiday, but a confrontation with a sea mutant ensues, resulting in DM being sent up to his neck in sand and Penfold kidnapped. DM activates his inflatable trousers to get out.